Strawberry Rhubarb Upside Down Cake (Printable Version)

# What You’ll Need:

→ Upside Down Topping

01 - 60g butter, melted
02 - 200g brown sugar, packed
03 - 300g fresh strawberries, sliced
04 - 300g fresh rhubarb, chopped into medium pieces

→ Cake Batter

05 - 115g butter, softened
06 - 200g white sugar
07 - 150g brown sugar
08 - 1 large egg
09 - 1 large egg yolk
10 - 1 teaspoon vanilla extract
11 - 250g all-purpose flour
12 - 1 teaspoon baking soda
13 - 1/2 teaspoon baking powder
14 - 230g sour cream
15 - 300g fresh rhubarb, finely chopped

# Steps to Follow:

01 - Preheat oven to 180°C (350°F).
02 - Grease the sides of a 33cm x 23cm (13-inch x 9-inch) baking pan. Pour the melted butter into the bottom of the pan and sprinkle brown sugar evenly over it.
03 - Arrange strawberry slices on the brown sugar layer, then sprinkle rhubarb pieces evenly over the strawberries. Gently press the fruit into the brown sugar mixture.
04 - In a large bowl with a hand mixer or in a stand mixer with paddle attachment, cream butter and both sugars until well combined. Beat in egg, egg yolk, and vanilla until completely incorporated.
05 - In a separate bowl, whisk together flour, baking soda, and baking powder.
06 - Alternately add the dry mixture and sour cream to the butter mixture on low speed. Mix for an additional minute to ensure thorough combination.
07 - Fold in the finely chopped rhubarb until evenly distributed throughout the batter.
08 - Drop spoonfuls of batter over the fruit layer and carefully spread into an even layer, being careful not to disturb the fruit underneath.
09 - Bake until golden brown and a toothpick inserted in the center comes out clean, about 50 minutes. If the top browns too quickly, cover loosely with aluminum foil.
10 - Remove from oven and allow to cool for 20 minutes. Run a butter knife around the edges to loosen the cake.
11 - Place a large serving platter over the pan and carefully flip to invert the cake. The fruit topping will now be on top with the cake underneath.
12 - Slice and serve while still warm or at room temperature.

# Additional Notes:

01 - The fruit mixture is initially placed at the bottom of the pan but becomes the topping when the cake is inverted after baking.
02 - The center where the cake meets the fruit is the last area to cook properly. Always test this area with a toothpick to ensure the cake is fully baked.