Easy Strawberry Rhubarb Cake (The Best Summer Dessert)
This easy strawberry rhubarb cake is bursting with sweet-tart fruit flavor and comes together in under an hour. Perfect for summer gatherings, weekend baking, or even a stunning strawberry rhubarb breakfast cake.
The Only Strawberry Rhubarb Cake Recipe You Will Ever Need
If summer had a flavor, it would taste exactly like this. Sweet, jammy strawberries tangled with tart rhubarb, all nestled into a buttery, golden cake that perfumes your entire kitchen while it bakes. This easy strawberry rhubarb cake is the kind of recipe that becomes a tradition, the one people ask for every single June when rhubarb finally shows up at the farmers market and strawberries are at their most fragrant and red.
Whether you are baking it as a casual weeknight dessert, showing up to a summer potluck with something people will actually remember, or sneaking a slice for a lazy strawberry rhubarb breakfast cake with your morning coffee, this recipe delivers every single time.
Why Strawberries and Rhubarb Are a Match Made in Heaven
Rhubarb on its own is bracingly tart, almost too much so. Strawberries on their own are lovely but can turn cloying in baked goods. Together, they create this magical sweet-tart balance that neither could achieve alone. The rhubarb keeps the sweetness honest. The strawberries soften the sharpness. The result is a filling that tastes alive in a way that most fruit desserts just do not.
The secret to keeping that balance in this strawberry rhubarb cake recipe is a light toss of cornstarch before the fruit hits the batter. It thickens the juices as they bake, so you get a glossy, jam-like layer on top rather than a soggy middle.
Chef's Tip: Do not skip macerating the fruit with a little sugar before baking. Even 10 minutes of resting time draws out the juices and intensifies the flavor dramatically.
Tools and Ingredients That Actually Make a Difference
For a cake this simple, the quality of your ingredients matters more than you might think. Fresh, in-season rhubarb and strawberries will make a noticeably better cake than out-of-season or overly soft fruit. The same goes for your butter, which should be real, unsalted, and properly softened.
Having the right baking pan also changes your results. A light-colored metal 8x8 or 9x9 pan bakes the cake more evenly than dark nonstick, which can over-brown the edges before the center sets.
How To Make Strawberry Rhubarb Cake (Step by Step)
This is genuinely one of the easier strawberry easy dessert recipes in the summer rotation. The batter comes together with a hand mixer in about 10 minutes, and the fruit prep is minimal.
Here is what makes this particular strawberry rhubarb cake recipe easy and reliably good every time:
- Room temperature ingredients. Cold butter and cold eggs do not cream properly. Pull them out 30 minutes before you start.
- Thick batter by design. Do not panic when the batter looks almost too thick to spread. That density is what holds the heavy fruit layer on top without sinking.
- The brown sugar cinnamon topping. It sounds simple, and it is, but it creates a lightly caramelized, crackly top that makes the cake look stunning coming out of the oven.
- The toothpick test. Test for doneness in the center of the cake, not in a spot where fruit has pooled, or you will get a false wet reading.
Chef's Tip: If the top is browning too quickly before the center is set, loosely tent the pan with foil at the 30-minute mark and continue baking.
Ready to make it? Here is the full step-by-step recipe:
Easy Strawberry Rhubarb Cake (The Best Summer Dessert)
This easy strawberry rhubarb cake is bursting with sweet-tart fruit flavor and comes together in under an hour. Perfect for summer gatherings, weekend baking, or even a stunning strawberry rhubarb breakfast cake.
Ingredients
- 2 cups all-purpose flour, spooned and leveled
- 1 cup granulated sugar, divided, half for batter and half for topping
- 2 tsp baking powder
- 1/2 tsp salt
- 1/2 cup unsalted butter, softened to room temperature
- 2 large eggs, room temperature
- 1/2 cup whole milk, or buttermilk for extra tenderness
- 1 tsp vanilla extract, pure, not imitation
- 1 1/2 cups fresh strawberries, hulled and sliced into halves or quarters
- 1 1/2 cups fresh rhubarb, trimmed and sliced into 0.5-inch pieces
- 1 tbsp cornstarch, tossed with the fruit to prevent a soggy bottom
- 2 tbsp brown sugar, packed, for sprinkling on top
- 1/2 tsp cinnamon, for the fruit topping
Instruction
Preheat your oven to 350 degrees F (175 degrees C). Grease an 8x8-inch or 9x9-inch square baking pan with butter or nonstick spray, then lightly dust with flour.
In a medium bowl, combine the sliced strawberries and rhubarb pieces with the cornstarch and 2 tablespoons of the granulated sugar. Toss gently until the fruit is evenly coated, then set aside to macerate while you make the batter.
In a large bowl, whisk together the flour, baking powder, salt, and the remaining granulated sugar until well combined.
Add the softened butter to the flour mixture and use a hand mixer or stand mixer on medium speed to beat until the mixture resembles coarse, sandy crumbs, about 2 minutes.
Add the eggs one at a time, beating well after each addition. Pour in the milk and vanilla extract, then mix on low speed just until a thick, smooth batter forms. Do not overmix.
Spread the batter evenly into the prepared baking pan using a spatula. The batter will be thick, so take your time spreading it all the way to the edges.
Spoon the macerated strawberry rhubarb mixture evenly over the top of the batter, distributing the fruit as evenly as possible. Pour any accumulated fruit juices over the top as well.
In a small bowl, stir together the brown sugar and cinnamon. Sprinkle this mixture evenly over the fruit layer.
Bake for 40 to 50 minutes, or until a toothpick inserted into the center of the cake (not into a fruit pocket) comes out clean or with just a few moist crumbs. The top should be golden and the edges slightly pulled away from the pan.
Remove from the oven and let the cake cool in the pan on a wire rack for at least 20 minutes before slicing. Serve warm or at room temperature, topped with whipped cream or a scoop of vanilla ice cream if desired.
Equipment
- 8x8-inch or 9x9-inch square baking pan
- Hand mixer or stand mixer
- Large mixing bowl
- Medium mixing bowl
- Rubber spatula
- Wire cooling rack
- Whisk
Notes
Serving, Storing, and Variations
How to serve it: This cake is wonderful warm, about 20 minutes out of the oven, with a generous scoop of vanilla ice cream melting into the top. At room temperature it is equally good, especially the next morning as a strawberry rhubarb breakfast cake alongside a strong cup of coffee.
Variations to try:
- Strawberry Rhubarb Cobbler With Cake Mix: Use a box of yellow cake mix instead of the homemade batter for a faster, fuss-free cobbler-style version that is still deeply satisfying.
- Strawberry Rhubarb Dump Cake: Layer the fruit in the bottom of a greased pan, pour the cake mix dry over the top, drizzle with melted butter, and bake. It is a classic strawberry rhubarb dump cake with cake mix that requires almost zero effort.
- Add a streusel topping: Swap the brown sugar and cinnamon for a quick streusel of oats, flour, butter, and brown sugar for a more textured, coffeecake-style finish.
Storage: Cover and keep at room temperature for 2 days, or refrigerate for up to 5 days. Individual slices freeze beautifully for up to 2 months, making this a great make-ahead option for busy weeks or unexpected guests.
