If you’re on the hunt for a dessert that perfectly captures the essence of spring with its sweet and tangy balance, Nana’s Strawberry Rhubarb Cake Recipe is your new best friend. This delightful cake brings together juicy fresh strawberries and tart rhubarb in a tender, buttery cake that’s topped with a crumbly streusel for that extra touch of comfort. Every bite is like a warm hug from the past, a recipe that’s been cherished and lovingly shared, delivering nostalgia and pure joy in every slice.

Ingredients You’ll Need
These ingredients might be simple, but each one plays an essential role in making Nana’s Strawberry Rhubarb Cake Recipe a standout. From the richness of the butter to the freshness of the fruit, they perfectly blend to give you a cake with incredible flavor, texture, and vibrant color.
- 2 cups all-purpose flour: The base that gives the cake its soft, crumbly texture.
- 1 tsp baking powder: Helps the cake rise beautifully and stay light.
- ½ tsp baking soda: Works with the buttermilk to create a tender crumb.
- ½ tsp salt: Balances sweetness and enhances the overall flavor.
- 1 cup unsalted butter, softened: Adds richness and moistness to the cake.
- 1 cup granulated sugar: Sweetens the batter just perfectly without overpowering.
- 2 large eggs: Bind the ingredients and add structure to the cake.
- 1 tsp vanilla extract: A subtle aroma that elevates every bite.
- 1 cup buttermilk (or milk with 1 tbsp lemon juice): Brings tang and moisture, making the cake tender.
- 2 cups fresh strawberries, hulled and sliced: Juicy bursts of sweetness that complement the rhubarb.
- 2 cups rhubarb, chopped: Adds the perfect tartness to balance the strawberries.
- ½ cup granulated sugar: Sweetens the fruit topping for a luscious finish.
- 1 tbsp cornstarch (optional): Helps to thicken the fruit filling, keeping it from getting soggy.
- 1/3 cup granulated sugar: Used in the streusel topping for just enough sweetness.
- 1/3 cup all-purpose flour: Gives the streusel its crumbly texture.
- 3 tbsp unsalted butter, cold and cut into small pieces: Creates that perfect crumbly streusel topping.
How to Make Nana’s Strawberry Rhubarb Cake Recipe
Step 1: Prepare Your Oven and Pan
Start by heating your oven to 350°F (175°C). Grease a 9×13-inch baking pan thoroughly to ensure your cake doesn’t stick and releases perfectly after baking. This step sets the stage for the perfect bake.
Step 2: Mix the Dry Ingredients
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. This is your dry foundation, and getting these combined well means a uniform rise and consistency in your cake.
Step 3: Cream Butter and Sugar
In a large bowl, beat the softened butter and granulated sugar until light and fluffy. This process incorporates air that helps your cake be tender and soft. Add the eggs one at a time, beating well after each addition. Stir in the fragrant vanilla extract to bring subtle warmth to your batter.
Step 4: Combine Wet and Dry Ingredients
Now, alternate adding your dry ingredients and buttermilk to the butter mixture, mixing just until combined. This technique keeps the batter light, ensuring your cake will have the ideal crumb structure that Nana’s Strawberry Rhubarb Cake Recipe is famous for.
Step 5: Spread the Batter
Pour the batter into your prepared pan and spread it out evenly using a spatula. This even layer will help the cake bake uniformly and support the fruit topping perfectly.
Step 6: Prepare and Add the Fruit Topping
Mix the sliced strawberries, chopped rhubarb, sugar, and the optional cornstarch in a bowl to create a luscious topping. Spoon this mixture evenly over the cake batter, letting the fruit complement the soft cake below with natural juices and vibrant color.
Step 7: Add the Streusel Topping (Optional but Worth It!)
In a small bowl, combine the sugar, flour, and cold butter pieces. Use your fingers or a pastry cutter to work the butter into the dry ingredients until crumbly. Sprinkle this over your fruit topping for a beautifully textured and buttery finish that adds a delightful crunch.
Step 8: Bake to Perfection
Bake the cake for 45-50 minutes, or until a toothpick inserted in the center comes out clean. This baking time lets the cake set and the fruit topping bubble and caramelize just enough for that irresistible aroma and flavor.
Step 9: Cool and Serve
Allow your masterpiece to cool in the pan for about 10 minutes before slicing. This resting time helps the flavors to meld and makes the cake easier to cut without crumble. Serve warm or at room temperature, ideally topped with whipped cream or vanilla ice cream for that ultimate indulgence.
How to Serve Nana’s Strawberry Rhubarb Cake Recipe

Garnishes
For an extra touch of elegance, a dollop of freshly whipped cream or a scoop of vanilla ice cream pairs beautifully with the warm, tangy fruit topping. Fresh mint leaves or a light dusting of powdered sugar bring visual charm and a fresh lift.
Side Dishes
This cake can stand alone as a star dessert, but if you want to add an accompaniment, consider a simple cup of Earl Grey tea or a glass of cold milk. For brunch, a light lemon yogurt or a fresh berry salad can complement the dessert’s fruity notes without overpowering them.
Creative Ways to Present
Cut into rustic squares for a casual family gathering or use heart-shaped cutters for a festive occasion. Layer slices between delicate plates with fresh berries on the side to invite a touch of sophistication. You can even serve small individual portions in pretty ramekins for a charming presentation that will wow your guests.
Make Ahead and Storage
Storing Leftovers
Wrap leftover cake tightly with plastic wrap or store in an airtight container at room temperature if you plan to eat it within two days. For longer freshness, refrigeration can help, but bring it back to room temperature before serving to enjoy its full flavor.
Freezing
Nana’s Strawberry Rhubarb Cake Recipe freezes wonderfully. Slice the cake, wrap each piece in plastic wrap, then place in a freezer bag or airtight container. Frozen cake can last up to three months. Thaw overnight in the fridge and warm gently for that just-baked feel.
Reheating
Reheat slices in the microwave for about 20 seconds or warm them in a low oven at 300°F (150°C) for 10 minutes to bring back the cake’s softness and delicate aroma before serving. Pair with fresh whipped cream or ice cream as a perfect finish.
FAQs
Can I use frozen strawberries and rhubarb for this recipe?
Yes, frozen fruit can be used if fresh is not available; just be sure to thaw them and drain excess liquid before adding to keep your cake from becoming soggy.
Is there a way to make this cake gluten-free?
Absolutely! Substitute the all-purpose flour with a gluten-free baking flour blend that includes xanthan gum for best results, and bake as usual.
Can I make this cake dairy-free?
Yes, swap the butter for a plant-based margarine or coconut oil, and replace buttermilk with a dairy-free milk mixed with lemon juice or vinegar for a similar tang.
What if I don’t have buttermilk on hand?
Simply mix 1 cup of milk with 1 tablespoon of lemon juice or white vinegar and let it sit for 5-10 minutes. This homemade buttermilk substitute works perfectly in the recipe.
Can I skip the streusel topping?
Definitely. The cake is delicious on its own with just the strawberry rhubarb fruit topping, but the streusel adds a lovely crunch and buttery flavor that many people love.
Final Thoughts
Now that you’ve walked through every loving step of Nana’s Strawberry Rhubarb Cake Recipe, it’s time to bring a slice of this treasured treat into your kitchen. This cake is not just a dessert — it’s a celebration of fresh flavors and comfort that tastes like home. Trust me, once you try it, Nana’s Strawberry Rhubarb Cake Recipe will become your favorite go-to for sharing warmth and sweetness with everyone you care about.
Print
Nana’s Strawberry Rhubarb Cake Recipe
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
Nana’s Strawberry Rhubarb Cake is a delightful dessert combining a tender buttery cake base with a vibrant topping of fresh strawberries and tangy rhubarb. Finished with an optional crumbly streusel topping, this cake bakes to golden perfection and offers a perfect balance of sweet and tart flavors, ideal for a comforting and fruity treat.
Ingredients
Cake Batter
- 2 cups all-purpose flour
- 1 tsp baking powder
- ½ tsp baking soda
- ½ tsp salt
- 1 cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- 1 cup buttermilk (or use milk with 1 tbsp lemon juice)
Fruit Topping
- 2 cups fresh strawberries, hulled and sliced
- 2 cups rhubarb, chopped
- ½ cup granulated sugar
- 1 tbsp cornstarch (optional, for thicker filling)
Streusel Topping (Optional)
- 1/3 cup granulated sugar
- 1/3 cup all-purpose flour
- 3 tbsp unsalted butter, cold and cut into small pieces
Instructions
- Preheat the Oven: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan to prepare it for the cake batter.
- Mix Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside to be incorporated later.
- Cream Butter and Sugar: In a large bowl, beat the softened butter and 1 cup sugar together until the mixture becomes light and fluffy. This creates a smooth base for the cake batter.
- Add Eggs and Vanilla: Add the eggs one at a time to the butter mixture, beating well after each addition to ensure thorough incorporation. Stir in the vanilla extract.
- Combine Batter: Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk. Mix just until combined, careful not to overmix for a tender cake texture.
- Pour Batter into Pan: Pour the prepared batter evenly into the greased baking pan, spreading it gently to create an even layer.
- Prepare Fruit Topping: In a separate bowl, combine the strawberries, rhubarb, ½ cup sugar, and cornstarch if using. Spoon this fruit mixture evenly over the cake batter.
- Make Streusel Topping (Optional): In a small bowl, mix together sugar, flour, and cold butter. Use a pastry cutter or your fingers to blend until the mixture resembles coarse crumbs. Sprinkle this streusel evenly over the fruit layer for added texture.
- Bake: Place the pan in the oven and bake for 45-50 minutes, or until a toothpick inserted in the center of the cake comes out clean, indicating the cake is cooked through.
- Cool and Serve: Allow the cake to cool in the pan for 10 minutes before serving. Serve warm or at room temperature, optionally topped with whipped cream or vanilla ice cream for extra indulgence.
Notes
- If you do not have buttermilk, substitute with milk mixed with 1 tablespoon of lemon juice and let it sit for 5 minutes before using.
- Using cornstarch in the fruit topping helps thicken the filling and prevents it from becoming too runny.
- The streusel topping is optional but adds a lovely crunchy texture complementing the soft cake and juicy fruit.
- For best results, use fresh and ripe strawberries and rhubarb.
- Store leftovers covered in the refrigerator for up to 3 days; reheat gently before serving.

