Easy & Delicious Strawberry Rhubarb Cobbler: The Ultimate Spring & Summer Dessert

As the days lengthen and the weather warms, there’s a special time of year when vibrant red rhubarb stalks begin to appear, signaling the arrival of late spring and early summer. For many home bakers and dessert enthusiasts, this means it’s officially rhubarb season! If you share a love for this unique vegetable, you eagerly anticipate seeing fresh rhubarb at local farmers’ markets and grocery stores. This easy strawberry rhubarb dessert recipe perfectly captures the essence of the season, blending the tartness of rhubarb with the sweet juiciness of strawberries in a delightfully simple yet incredibly flavorful dish.
This particular Strawberry Rhubarb Cobbler stands out for its straightforward preparation and irresistible taste. It’s packed with delightful ingredients like fluffy marshmallows, tender fresh rhubarb, and rich creamy butter, creating a dessert that is consistently a huge hit at family gatherings, potlucks, and casual get-togethers. Once your friends and family try this recipe, they’ll be begging you for it, so be sure to keep it handy!

One of the best ways to enjoy this inviting strawberry rhubarb dessert is topped with a generous scoop of creamy vanilla ice cream or a dollop of fresh whipped cream. The warm, fruity goodness of the cobbler beautifully contrasts with the cold, smooth topping, creating a truly decadent experience for your palate. For an extra special touch, consider making your own Homemade Vanilla Ice Cream to pair with it – the difference is absolutely divine.
If you’re constantly on the lookout for more effortless and delicious dessert recipes, you’re in good company! Beyond this fantastic cobbler, you might love trying out my Honey Bun Cake, a classic for a reason; my chewy and flavorful Cowboy Cookies (with Brown Butter); or for a bright and zesty morning treat, my Lemon Crumb Muffins with Lemon Glaze! There’s always something sweet to bake.
What Makes This Strawberry Rhubarb Dessert So Effortless?
The secret to the incredible simplicity of this strawberry rhubarb dessert lies in two unexpected yet brilliant ingredients: a box of white cake mix and a package of strawberry Jell-O. These aren’t just “fun” additions; they are the ingenious components that make this recipe remarkably painless to prepare, transforming what could be a complex bake into a quick and easy process. You might even find that many of these delicious components are already waiting in your fridge and pantry, ready to be transformed into a show-stopping dessert.
While this dessert boasts a juicy, ruby-red filling bursting with flavor, its top layer surprises with a delightful, soft crunchiness. The naturally sweet taste of ripe strawberries harmonizes perfectly with the distinctive tartness of rhubarb, creating a balanced flavor profile that is truly irresistible. This combination truly offers everything you could possibly desire in a baked treat: a luscious fruit filling, a tender yet crisp topping, and a vibrant seasonal taste.
By utilizing strawberry Jell-O and cake mix, this dessert shares a similar approach to a classic “dump cake.” However, it doesn’t possess a traditional cake-like texture in the strictest sense. Instead, it ingeniously blends the best qualities of several beloved desserts: the effortless layering of a dump cake, the crunchy topping of a rhubarb crisp, and the warm, fruity filling characteristic of a strawberry rhubarb cobbler. This unique hybrid delivers a fantastic experience that’s both easy to make and wonderfully satisfying.
Craving more sweet fruit-based recipes? Be sure to explore my Lemon Rhubarb Bundt Cake for another wonderful rhubarb creation, or dive into the delightful layers of my Blueberry Streusel Dessert Pizza!
Key Ingredients for This Easy Strawberry Rhubarb Cobbler Recipe
One of the many joys of this recipe is that it relies on a handful of straightforward ingredients, many of which you might already have on hand in your refrigerator or pantry. For precise measurements, be sure to scroll down to the comprehensive recipe card below.
- Rhubarb: The star of the show! This unique vegetable offers a truly delightful balance of sweet and sour notes, making it an ideal candidate for delectable desserts. Its tartness is what makes it so distinctive and pairs so well with sweeter fruits.
- Marshmallows: You’ll need about 1 cup of miniature marshmallows, or if you only have larger ones, about 10 regular marshmallows, quartered. These add an extra layer of sweetness and contribute to a wonderfully gooey, caramelized texture beneath the crisp topping as they melt.
- Sugar: Essential for balancing the assertive tartness of the rhubarb. When combined with the strawberry Jell-O, the sugar helps create a perfectly sweet and tangy fruit filling.
- Strawberry Jell-O: This clever ingredient is a game-changer! It provides an instant burst of vibrant strawberry flavor and a beautiful red hue, enhancing the fruity experience without the need for extensive fresh strawberry preparation. It also helps to thicken the fruit filling slightly.
- White Cake Mix: The ultimate shortcut for simplicity! Using a box of white cake mix forms the base of our easy, crumbly topping, eliminating the need for measuring out multiple dry ingredients. If you prefer, a yellow cake mix can be substituted for a slightly different flavor profile.
- Butter: Melted butter is combined with the cake mix to create that irresistible, light, and tender texture for the cobbler’s top layer. It also adds a rich, comforting flavor that makes every bite feel indulgent.
- Water: A crucial element that helps bring all the components of the cobbler together. As it bakes, the water contributes to the moistness and tenderness of the rhubarb, ensuring it softens beautifully and melds with the other flavors.
How to Make the Best Strawberry Rhubarb Dump Cake-Style Cobbler
You’ll be delighted by how incredibly simple this rhubarb dessert recipe is to prepare! It truly lives up to its “dump cake” style name, requiring minimal effort for maximum flavor. For even more detailed, step-by-step instructions and specific quantities, please refer to the comprehensive recipe card located further down this page.
PREP Your Baking Dish and Oven
First, get your oven ready by preheating it to 350 degrees F (175 degrees C). While the oven heats, take a 9×13-inch baking dish and generously spray it with a non-stick cooking spray. This crucial step ensures your delicious cobbler won’t stick and will make serving and cleanup a breeze.
FILL the Dish with Fruit and Sweetness
Carefully place your diced fresh rhubarb into the bottom of the prepared baking dish. Spread it out evenly to form a consistent layer. Next, distribute the marshmallows uniformly over the rhubarb. As they bake, these marshmallows will melt into a sweet, gooey layer, complementing the tart rhubarb perfectly.


SPRINKLE the Flavorful Topping Base
In a separate small bowl, combine the dry strawberry Jell-O mix with the granulated sugar. Whisk them together until they are well blended. Then, generously sprinkle this vibrant mixture evenly over the layer of marshmallows and rhubarb. This step infuses the dessert with a wonderful strawberry flavor and helps to sweeten the rhubarb as it bakes.
MIX the Crumbly Topping
Now it’s time to create the signature crumbly topping. In a medium-sized mixing bowl, combine the dry white cake mix with the melted butter. Use a fork or your fingertips to work the butter into the cake mix until it resembles coarse crumbs. This mixture will bake up into a golden, slightly crunchy crust.
POUR and Layer
Once your crumbly topping is ready, sprinkle this mixture evenly over the Jell-O and rhubarb layers in the baking dish. Try to cover as much of the surface as possible. Finally, and this is an important step, slowly and evenly pour the cup of water over the entire top. The water will seep through the dry cake mix and activate the ingredients, ensuring a moist and perfectly baked cobbler.
BAKE to Golden Perfection
Place your baking dish in the preheated oven and bake for approximately one hour. Keep an eye on it towards the end of the baking time. The cobbler is ready when the top has achieved a beautiful, golden brown color and the fruit filling is bubbly and tender. The enticing aroma will also let you know it’s almost done!
SERVE Warm and Enjoy
Allow the cobbler to cool slightly after baking, then serve it warm. This is when its flavors and textures are at their absolute best. It’s truly divine on its own, but for an unforgettable experience, pair it with a scoop of premium vanilla ice cream or a generous dollop of freshly whipped cream. The contrasting temperatures and textures are pure bliss.
STORE Leftovers Properly
Should you have any delicious leftovers (a rare occurrence!), store them in the refrigerator. Transfer the cobbler to an airtight container, or simply cover the baking dish tightly with plastic wrap. It will keep well for up to 4 days, tasting just as delightful when gently reheated.

LOVE IT? PIN IT!
Don’t let this incredible sweet treat slip away! Make sure to pin this recipe to your favorite “Easy Desserts” or “Spring & Summer Recipes” board on Pinterest before you go. This way, you’ll always know where to find this fantastic Strawberry Rhubarb Cobbler whenever the craving strikes!
A Quick Note About Rhubarb: What You Need to Know
Rhubarb, often treated as a fruit in culinary applications, is actually a fascinating dark green leafy vegetable distinguished by its vibrant, edible stalks. While it isn’t a citrus fruit, its flavor profile is intensely tart, often described as even more sour than a lemon or lime. This unique tartness is precisely what makes it such a beloved ingredient in pies, jams, and desserts, where it creates a delightful contrast against sweeter components.
For centuries, rhubarb has been the “secret weapon” in many successful dessert recipes. However, if you’re new to cooking or baking with it, there are a few important things to know, especially when using fresh rhubarb straight from the garden or market.
Most critically, *never* cook with rhubarb leaves. These dark green leaves, despite looking appealing, are exceptionally high in oxalic acid. While the stalks are perfectly safe and delicious, the leaves contain concentrations of this acid that can be toxic if consumed in significant quantities. Therefore, always trim off and dispose of the leaves properly – toss them into your compost bin or the trash. Resist the urge to experiment with them in salads or other dishes!
Is Rhubarb Poisonous? Understanding Oxalic Acid
To be precise, rhubarb leaves are not “poisonous” in the sense of a rapid, lethal toxin, but their high concentration of oxalic acid can indeed cause adverse health effects. Oxalic acid is a compound found in many plants, and while it’s present in small, harmless amounts in the stalks of rhubarb, it’s concentrated in the leaves. Consuming too much oxalic acid should be avoided, as it’s known to be a significant contributor to the formation of kidney stones in susceptible individuals. Symptoms of rhubarb leaf ingestion can include nausea, vomiting, abdominal pain, and weakness. So, to stay safe and healthy, it’s always best to simply remove the leafy green parts and discard them properly. The fibrous stalks, however, are completely safe and packed with delicious flavor and nutrients.
Fortunately, if you plan on using canned or frozen rhubarb for your recipes, you generally don’t need to worry about the leaves. These products are typically prepared with only the safe, edible stalks, making them a convenient option for year-round rhubarb enjoyment.
What Does Rhubarb Taste Like?
The flavor of rhubarb is unmistakably tart. Its sharp, tangy taste can indeed evoke a citrusy sensation, but it often has a more intense puckering quality, similar to biting into a very tart green apple or an unripe green grape. This powerful tartness is precisely why rhubarb is so frequently paired with sweeter fruits, most famously strawberries, in desserts. The sweetness of the accompanying fruit, along with added sugar, beautifully balances rhubarb’s acidity, transforming it into a wonderfully complex and refreshing flavor profile rather than an overwhelmingly sour one.
Is Rhubarb Good for You?
Absolutely! Don’t let the caution regarding the leafy greens deter you from enjoying the many benefits of rhubarb stalks. The stalks themselves are not only safe to eat but are also incredibly nutritious. They are an excellent source of dietary fiber, which is vital for digestive health. Furthermore, rhubarb stalks are rich in essential vitamins and minerals, including a good amount of Vitamin C, a powerful antioxidant, and important minerals like manganese, potassium, calcium, and Vitamin K. So, when prepared correctly, rhubarb is a delicious and healthy addition to your diet!
Other Sweet Recipes to Enjoy All Year Long
If you’ve fallen in love with the combination of tart fruit and sweet crumble, you’re in luck! I have all sorts of delightful dessert recipes that feature the wonderful flavors of rhubarb and fresh strawberries. Fruit desserts and fruit crisps have long been a personal favorite of mine, offering comforting sweetness and a burst of seasonal flavor.
Explore more of my Favorite Rhubarb Recipes:
- Lemon Rhubarb Bundt Cake: A zesty and tender cake showcasing the unique taste of rhubarb.
- Fresh Rhubarb Cake: A simple yet elegant cake that highlights the fresh flavor of rhubarb.
- Grandma’s Rhubarb Pie: If you’re accustomed to traditional strawberry rhubarb pie, give this one a try! It achieves its sweetness from plump golden raisins, offering a delightful twist, all nestled within a homemade, flaky pie crust.
- Rhubarb Crumble Bars (pictured above): These bars feature an irresistible crisp topping that will truly make you swoon! Perfect for snacking or sharing.
Don’t miss these other Favorite Fruit Desserts:
- Strawberry Cake: A moist and tender cake bursting with fresh strawberry flavor.
- Strawberry Sour Cream Crumb Pie Bars: Layers of creamy, fruity, and crumbly goodness in an easy-to-serve bar format.
- Fresh Strawberry Pie: A classic, vibrant pie that celebrates the peak of strawberry season.
- Easy Lemon Raspberry Bundt Cake: A bright and tangy bundt cake that combines the delightful flavors of lemon and raspberry.
- Cherry Filled Coffee Cake: A comforting coffee cake with a sweet cherry filling, perfect for breakfast or dessert.
- Apple Crisp: This perennial favorite features a truly satisfying crumble topping made with old-fashioned oats. It’s a perfect dessert any time of the year, offering warmth and comfort.

Ready to bake up this incredibly simple and delicious rhubarb cobbler recipe? Let’s get to it and create a truly memorable seasonal dessert! 
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