Strawberry Rhubarb Upside Down Cake

Name: Strawberry Rhubarb Upside Down Cake
Prep time: 20 min
Cook time: 35 min
Total time: 60 min
Ingredients: 2 cups fresh strawberries, sliced (Cut larger berries to match rhubarb pieces for even cooking.); 2 cups rhubarb, chopped into about 1/2-inch pieces (Chop rhubarb smaller if pieces are thicker for even cooking.); 1 cup granulated sugar, divided (1/2 cup for topping, 1/2 cup for batter.); 4 tablespoons unsalted butter (Use room temperature for easier melting.); 1 1/2 cups all-purpose flour (Use a gluten-free blend if needed.); 1 1/2 teaspoons baking powder; 1/2 teaspoon salt; 1/2 cup milk (Whole milk gives the best texture; use plant-based for dairy-free.); 1 teaspoon vanilla extract; 2 large eggs (Use room temperature for better mixing.)

By:

Emily Hart

| Posted on:

March 25, 2026

Delicious Strawberry Rhubarb Upside Down Cake served on a plate

Recipes

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I learned to love this upside down cake the first time I flipped a pan and a glossy, jammy layer of strawberries and rhubarb landed on my plate. This Strawberry Rhubarb Upside Down Cake marries tart rhubarb with sun-warmed strawberries and a simple buttery caramel for a rustic, year-round dessert that feels special but is easy to make. If you like seasonal baking that showcases fresh fruit, this is a great way to use peak strawberries and rhubarb; for a lighter summer menu, try it alongside a simple shortcake — I often pair it conceptually with a homemade strawberry shortcake when planning dessert options for guests.

Why you’ll love this dish

This cake is an elegant-looking dessert with minimal fuss. It’s great because:

Flavor balance: The sugared butter creates a caramel base that tames rhubarb’s tartness while letting strawberry brightness shine.
Simple technique: No whipped creams or multi-step fillings — you arrange fruit, pour batter, bake, and flip.
Versatile timing: Serve warm right from the oven or make it ahead and serve at room temperature for brunch or an afternoon gathering.
Budget-friendly seasonal baking: With just a few pantry staples plus fresh fruit, it’s an excellent way to highlight spring produce without complicated equipment.

Step-by-step overview

You’ll melt butter with half the sugar to create a quick caramel, spread it in the pan, arrange the fruit, whisk dry ingredients, beat together the wet ingredients, fold wet into dry, and spoon the batter over the fruit. Bake at 350°F (175°C) for about 30 to 35 minutes, cool briefly, then invert so the caramel-fruit layer becomes the top. The process is straightforward and forgiving; the key moments are making the caramel, arranging a single fruit layer, and flipping carefully after a short cool so the topping releases cleanly.

What you’ll need

2 cups fresh strawberries, sliced
2 cups rhubarb, chopped into about 1/2-inch pieces
1 cup granulated sugar, divided (1/2 cup for topping, 1/2 cup for batter)
4 tablespoons unsalted butter
1 1/2 cups all-purpose flour
1 1/2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup milk (whole milk gives best texture; use plant-based milk for dairy-free)
1 teaspoon vanilla extract
2 large eggs

Ingredient notes and simple substitutions:

If your strawberries are exceptionally sweet, reduce the topping sugar to 1/3 cup. If you want richer cake crumbs, swap 2 tablespoons of milk for buttermilk.
For a gluten-free version, use a 1:1 gluten-free baking flour blend and check the packet for rising agent adjustments.
For dairy-free, use a neutral oil (reduce to 3 tablespoons) and a non-dairy milk.

Step-by-step instructions

Preheat the oven to 350°F (175°C). Grease a 9-inch round cake pan and line the bottom with parchment for an easier release.
Melt the butter in a small saucepan over low heat. Stir in 1/2 cup of the sugar until it dissolves and the mixture is slightly bubbly. Remove from heat.
Pour the caramel into the prepared pan and spread it evenly so the fruit will sit on top.
Arrange the sliced strawberries and chopped rhubarb in a single layer over the caramel. Try not to overcrowd; a single even layer helps the fruit release cleanly.
In a large bowl, whisk together the flour, baking powder, salt, and the remaining 1/2 cup sugar.
In a separate bowl, beat the milk, vanilla, and eggs until smooth and slightly frothy.
Pour the wet mixture into the dry ingredients and fold gently until just combined. Do not overmix.
Spoon the batter evenly over the arranged fruit, smoothing lightly to fill gaps.
Bake for 30 to 35 minutes, or until the top is golden and a toothpick inserted in the center comes out clean.
Let the cake cool for 10 minutes in the pan. Run a knife around the edges if needed. Place a serving plate over the pan and invert carefully so the fruit side is up.
Serve warm or at room temperature.

Serving suggestions

Best plated simply: a wedge on a dessert plate with a scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream.
Brighten it with a few mint leaves or a fine grate of lemon zest to cut through the caramel.
For afternoon coffee, serve thin slices with plain Greek yogurt sweetened with a touch of honey.
If you want to echo classic flavors, serve alongside a shortcake-style dessert menu item or use macerated strawberries for a matching strawberry-themed spread — I sometimes reference a homemade strawberry shortcake recipe when styling a berry-forward dessert table.

Storage and reheating tips

Room temperature: Cover loosely and keep out for up to 24 hours. The fruit topping is juicier when warm.
Refrigerator: Store in an airtight container for up to 3 days. Bring to room temperature or warm gently before serving.
Freezing: Wrap individual slices in plastic wrap and then foil. Freeze up to 2 months. Thaw in the refrigerator overnight and warm briefly in a 325°F oven for 8–10 minutes.
Food safety: Cool the cake completely before refrigerating to avoid condensation and faster spoilage.

Pro chef tips

Use room-temperature eggs and milk for a batter that mixes smoothly and traps air for a lighter crumb.
If your rhubarb pieces are thicker than 1/2 inch, chop them smaller so they cook through in the baking time.
Avoid overcrowding strawberries; cut larger berries to match the rhubarb so the layer is even.
Let the caramel cool for a minute before arranging fruit so it’s spreadable but not so hot it overcooks the berries.
To prevent sticking, line the pan with parchment and coat the sides with butter — the parchment ensures a clean release when you invert.
Check for doneness with a toothpick near the center; because fruit is underneath, crumbs on the pick indicate doneness rather than jammy streaks.

Creative twists

Berry swap: Replace strawberries with raspberries or a mixed berry medley for a more complex tart-sweet finish.
Spice it up: Add 1/2 teaspoon cinnamon or 1/8 teaspoon ground cardamom to the dry ingredients for warmth.
Nutty crunch: Sprinkle chopped toasted almonds or pecans over the caramel before arranging fruit.
Lighter version: Reduce sugar by 2 tablespoons and add a tablespoon of maple syrup to the batter for different sweetness and depth.
Vegan option: Replace eggs with a commercial egg replacer or two tablespoons of ground flaxseed mixed with 6 tablespoons water, and use plant-based milk and vegan butter.

Helpful answers

How long does this cake take to make from start to finish?

Hands-on time is about 20 minutes; baking and brief cooling add 40 to 45 minutes. Plan roughly one hour total.

Can I use frozen strawberries or rhubarb?

You can, but thaw and drain them first to remove excess moisture. Pat them lightly with paper towels so the caramel layer doesn’t become too watery during baking.

My topping stuck when I inverted the pan. How can I prevent that?

Line the pan with a small parchment round and grease the sides well. Allow the cake to cool for the full 10 minutes so the caramel firms slightly, then run a knife around the edge before inverting. A quick, confident flip helps release it in one piece.

Can I make this ahead of time?

Yes. Bake, cool completely, cover, and refrigerate. Warm lightly before serving. For best texture, serve within 48 hours.

Is there a way to reduce the tartness of rhubarb without adding a lot more sugar?

Slice rhubarb small and use ripe strawberries to balance tartness; the caramel layer already helps mellow acidity. You can also briefly macerate rhubarb with a tablespoon of sugar for 10 minutes and drain excess liquid before arranging.