STRAWBERRY PUREE
- 2 pounds fresh strawberries, rinsed and hulled
CAKE
- 2 and 1/2 cups cake flour (spoon & leveled)
- 2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1 teaspoon salt
- 3/4 cup (1.5 sticks unsalted butter, softened to room temperature
- 1 and 3/4 cups granulated sugar
- 5 large egg whites, at room temperature
- 1/3 cup sour cream or plain yogurt, at room temperature
- 2 teaspoons pure vanilla extract
- 1/2 cup whole milk, at room temperature*
- 1/2 cup reduced strawberry puree (see step 1)
- optional: 1–2 drops red or pink food coloring
Frosting
6 cups powdered sugar
1 1/2 cups salted sweet cream butter
1/2 cup pureed strawberries
- Make the reduced strawberry puree first, and let cool: Puree 1 pound of rinsed and hulled strawberries. You should have a little over 1 cup. Stirring occasionally, simmer the puree over medium-low heat until you’re left with 1/2 cup or slightly more (you need 1/2 cup for the cake). This takes at least 25–35 minutes, but could take longer depending on your pan or how juicy your strawberries were. Allow to cool completely before using in cake batter. I always make the reduced puree the day before so it has plenty of time to cool down. I cover and place in the refrigerator overnight. Allow it to come back to room temperature before adding to the cake batter. (See Notes for further make-ahead instructions.)
- Preheat oven to 350°F (177°C). Grease two 9-inch round cake pans, line with parchment paper rounds, then grease the parchment paper. Parchment paper helps the cakes seamlessly release from the pans.
- Make the cake: Whisk the cake flour, baking powder, baking soda, and salt together. Set aside.
- Using a handheld or stand mixer fitted with a paddle attachment, beat the butter and sugar together on high speed until smooth and creamed, about 2 minutes. Scrape down the sides and up the bottom of the bowl with a rubber spatula as needed. Beat in the egg whites on high speed until combined, about 2 minutes. Then beat in the sour cream and vanilla extract. Scrape down the sides and up the bottom of the bowl as needed. With the mixer on low speed, add the dry ingredients until just incorporated. With the mixer still running on low, slowly pour in the milk *just* until combined. Do not overmix. Whisk in 1/2 cup of room-temperature reduced strawberry puree, making sure there are no lumps at the bottom of the bowl. The batter will be slightly thick. Stir in food coloring, if desired.
- Pour batter evenly into cake pans. Bake for around 24–25 minutes or until the cakes are baked through. To test for doneness, insert a toothpick into the center of the cake. If it comes out clean, it is done. Allow cakes to cool completely in the pans set on a wire rack. The cakes must be completely cool before frosting and assembling.
- Make the reduced strawberry puree first, and let cool: Puree 1 pound of rinsed and hulled strawberries. You should have a little over 1 cup. Stirring occasionally, simmer the puree over medium-low heat until you’re left with 1/2 cup or slightly more (you need 1/2 cup for the cake). This takes at least 25–35 minutes, but could take longer depending on your pan or how juicy your strawberries were. Allow to cool completely before using in cake batter. I always make the reduced puree the day before so it has plenty of time to cool down. I cover and place in the refrigerator overnight. Allow it to come back to room temperature before adding to the cake batter. (See Notes for further make-ahead instructions.)
- Preheat oven to 350°F (177°C). Grease two 9-inch round cake pans, line with parchment paper rounds, then grease the parchment paper. Parchment paper helps the cakes seamlessly release from the pans.
- Make the cake: Whisk the cake flour, baking powder, baking soda, and salt together. Set aside.
- Using a handheld or stand mixer fitted with a paddle attachment, beat the butter and sugar together on high speed until smooth and creamed, about 2 minutes. Scrape down the sides and up the bottom of the bowl with a rubber spatula as needed. Beat in the egg whites on high speed until combined, about 2 minutes. Then beat in the sour cream and vanilla extract. Scrape down the sides and up the bottom of the bowl as needed. With the mixer on low speed, add the dry ingredients until just incorporated. With the mixer still running on low, slowly pour in the milk *just* until combined. Do not overmix. Whisk in 1/2 cup of room-temperature reduced strawberry puree, making sure there are no lumps at the bottom of the bowl. The batter will be slightly thick. Stir in food coloring, if desired.
- Pour batter evenly into cake pans. Bake for around 24–25 minutes or until the cakes are baked through. To test for doneness, insert a toothpick into the center of the cake. If it comes out clean, it is done. Allow cakes to cool completely in the pans set on a wire rack. The cakes must be completely cool before frosting and assembling.
- Frosting: Mix powdered sugar and butter with a mixer on low. Add strawberry puree and mix until the right consistency.
Recipe from Sally's Baking Addiction
