If you’re looking for a dessert that perfectly balances tart and sweet, Nana’s Strawberry Rhubarb Cake Recipe is your new best friend. Imagine tender cake layers bursting with juicy strawberries and tangy rhubarb, topped with a cinnamon-sprinkled brown sugar crust that gives every bite a delightful crunch. This old-fashioned cake feels like a warm hug from a summer afternoon, carrying the charm of homemade treats and the vibrant flavors of fresh fruit.

Ingredients You’ll Need
The beauty of Nana’s Strawberry Rhubarb Cake Recipe lies in its simplicity. Each ingredient plays a crucial role in creating that delightful mix of tender crumb and fruity freshness, from the smooth richness of butter to the zingy brightness of the rhubarb. Let’s break down exactly what you’ll need:
- Granulated sugar: Sweetens the cake and helps achieve a tender crumb.
- Unsalted butter (softened): Adds richness and moisture while ensuring a soft texture.
- Large eggs: Bind the cake together and give structure without heaviness.
- Vanilla extract: Brings warmth and depth to flavor, enhancing the fruit.
- All-purpose flour: The backbone of the cake, creating the perfect crumb when mixed properly.
- Baking soda: Helps the cake rise just right, making it light and fluffy.
- Salt: Balances sweetness and elevates all other flavors.
- Sour cream: Adds moisture and a subtle tang for tender crumb and richness.
- Fresh rhubarb (chopped): Gives that signature tart bite and juicy texture.
- Fresh strawberries (sliced): Sweetness and fruity burst that complements rhubarb perfectly.
- Flour (for fruit toss): Prevents fruit from sinking during baking to maintain even distribution.
- Brown sugar (for topping): Creates a caramelized, crispy crust with a hint of molasses.
- Ground cinnamon (for topping): Adds warmth and a subtle spice that pairs beautifully with fruits.
How to Make Nana’s Strawberry Rhubarb Cake Recipe
Step 1: Prepare Your Oven and Pan
Preheat your oven to 350°F and grease a 9×13-inch baking dish. This ensures your cake will bake evenly and release easily, so you get perfect slices every time.
Step 2: Cream the Sugar and Butter
In a large mixing bowl, beat the granulated sugar and softened butter together until the mixture is light and fluffy. This step is key—it traps air that helps give your cake a lift and soft crumb.
Step 3: Add Eggs and Vanilla
Beat in the eggs one at a time, making sure each is fully incorporated before adding the next. Stir in the vanilla extract to infuse that lovely aroma and extra flavor depth.
Step 4: Combine Dry Ingredients Separately
In another bowl, whisk together the all-purpose flour, baking soda, and salt. This helps distribute the leavening agent evenly, so your cake rises flawlessly.
Step 5: Mix Dry Ingredients with Sour Cream
Add the dry ingredients to the wet mixture alternately with the sour cream. Mix gently until everything is just combined—overmixing can make the cake tough, and we want tender!
Step 6: Toss and Fold in the Fruit
In a separate bowl, toss the chopped rhubarb and sliced strawberries with 1 tablespoon of flour. This step prevents the fruit from sinking to the bottom during baking. Now, gently fold the fruit into the batter, spreading that burst of flavor throughout the cake.
Step 7: Spread Batter and Add Topping
Spread the batter evenly into your prepared baking dish. Mix brown sugar and ground cinnamon in a small bowl, then sprinkle this mixture generously over the top. This will bake into a crunchy, caramelized sweet-spice crust.
Step 8: Bake to Perfection
Bake for 40 to 45 minutes, or until a toothpick inserted into the center comes out clean. The cake should be golden and fragrant, with a tantalizing aroma that fills your kitchen.
Step 9: Cool Before Serving
Allow your cake to cool slightly before slicing. This resting time lets the flavors settle and makes clean cuts easier.
How to Serve Nana’s Strawberry Rhubarb Cake Recipe

Garnishes
Although this cake is delicious on its own, a dollop of freshly whipped cream or a scoop of vanilla ice cream on the side turns each bite into a dreamy indulgence. A few fresh strawberry slices or a sprig of mint also add a burst of color and freshness.
Side Dishes
Pair your slice with a simple cup of tea or freshly brewed coffee for a cozy afternoon treat. This cake also shines alongside a light, fruity salad to keep the dessert experience bright and refreshing.
Creative Ways to Present
For a charming twist, serve the cake in individual ramekins or mini baking dishes for personal portions. You can even layer chunks of this cake with whipped cream and berries in a trifle glass, creating a stunning dessert parfait that wows guests.
Make Ahead and Storage
Storing Leftovers
Wrap your cake tightly in plastic wrap or store it in an airtight container. It will stay fresh for up to three days at room temperature, perfect for enjoying over a few afternoons.
Freezing
If you want to keep a stash for later, Nana’s Strawberry Rhubarb Cake Recipe freezes beautifully. Wrap slices individually in plastic wrap and place them in a freezer bag; you can keep them frozen for up to two months.
Reheating
When ready to enjoy frozen or refrigerated slices, warm them gently in the microwave for about 20 seconds or heat in a low oven until warmed through. This brings back the cake’s soft texture and the topping’s lovely crunch.
FAQs
Can I use frozen fruit instead of fresh rhubarb and strawberries?
Absolutely! Just thaw and drain the fruit well before tossing with flour and folding into the batter. This helps avoid excess moisture that could make the cake soggy.
What’s the role of sour cream in this recipe?
Sour cream adds moisture and a subtle tang that balances the sweetness, keeping the cake tender and rich without becoming heavy.
Can this cake be made gluten-free?
You can substitute a gluten-free flour blend for the all-purpose flour, but results may vary slightly in texture. Make sure your blend contains xanthan gum or a similar binder for the best outcome.
How do I prevent the fruit from sinking to the bottom?
Tossing the fruit with a tablespoon of flour before folding it into the batter creates a light coating that helps suspend the fruit evenly throughout the cake.
Is there a way to make this cake dairy-free?
Yes! Swap the unsalted butter for dairy-free margarine and use a dairy-free yogurt or sour cream alternative. The flavor will remain delightful with these simple adjustments.
Final Thoughts
There’s something genuinely comforting about Nana’s Strawberry Rhubarb Cake Recipe that feels like passing down a cherished family secret. It’s a recipe that welcomes you in with its beautiful blend of flavors and cozy textures. Whether you’re baking for a special occasion or a simple weekend treat, this cake promises smiles with every bite. So go ahead, gather your ingredients and let your kitchen fill with the irresistible aroma of a dessert made with love!
Print
Nana’s Strawberry Rhubarb Cake Recipe
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 5 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
Nana’s Strawberry Rhubarb Cake is a delightful old-fashioned summer dessert that perfectly balances the tartness of rhubarb with the natural sweetness of strawberries. This moist, tender cake features a cinnamon-brown sugar topping for an extra touch of flavor, making it a nostalgic treat perfect for family gatherings or an afternoon snack.
Ingredients
Cake Batter
- 1 cup granulated sugar
- 1/2 cup unsalted butter, softened
- 2 large eggs
- 1 teaspoon vanilla extract
- 2 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup sour cream
Fruit Filling
- 1 1/2 cups chopped fresh rhubarb
- 1 cup sliced fresh strawberries
- 1 tablespoon all-purpose flour (for tossing fruit)
Topping
- 1/4 cup brown sugar
- 1/2 teaspoon ground cinnamon
Instructions
- Prepare the oven and pan: Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish thoroughly.
- Cream sugar and butter: In a large mixing bowl, beat the granulated sugar and softened butter together until the mixture is light and fluffy, which helps to incorporate air for a tender cake.
- Add eggs and vanilla: Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next, then stir in the vanilla extract to enhance flavor.
- Combine dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt to evenly distribute the leavening agent and salt.
- Mix dry and wet ingredients: Add the flour mixture to the creamed mixture alternately with sour cream, beginning and ending with the flour, and mix until just combined to avoid overmixing.
- Toss fruit with flour: In another bowl, gently toss the chopped rhubarb and sliced strawberries with 1 tablespoon of flour to keep them from sinking during baking.
- Fold fruit into batter: Carefully fold the floured fruit mixture into the batter to maintain the fruit’s distribution without breaking it up.
- Transfer to pan: Spread the batter evenly into the prepared greased baking dish, smoothing the surface for even cooking.
- Add topping: In a small bowl, mix the brown sugar and ground cinnamon, then sprinkle this mixture evenly over the top of the batter to create a flavorful crust.
- Bake: Bake in the preheated oven for 40 to 45 minutes, or until a toothpick inserted into the center of the cake comes out clean, indicating it is fully cooked.
- Cool and serve: Allow the cake to cool slightly in the pan before serving to let the flavors settle and make slicing easier. Optionally serve warm with whipped cream or vanilla ice cream for added indulgence.
Notes
- Frozen fruit can be used if fresh is unavailable; just thaw and drain thoroughly before tossing with flour.
- For a richer variation, drizzle vanilla glaze over the cooled cake or serve warm with whipped cream or vanilla ice cream.

