01 -
Preheat oven to 350°F. Grease two 8-inch round cake pans and line bottoms with parchment paper. Lightly grease parchment.
02 -
Sift together flour, baking powder, baking soda, and salt in a medium bowl.
03 -
Using a stand mixer or hand mixer, beat butter and granulated sugar on medium speed until pale and fluffy, about 3 to 4 minutes.
04 -
Add eggs one at a time, beating well after each addition. Scrape down bowl sides and bottom as needed.
05 -
Add half of dry ingredients and mix until combined. Blend in strawberry jam until incorporated.
06 -
Add remaining dry ingredients, scraping bowl if needed. Mix in sour cream, vanilla extract, and optional red food coloring until just combined with no flour streaks.
07 -
Divide batter evenly between prepared pans and spread gently. Bake 35 to 45 minutes or until a toothpick inserted into the center comes out clean. Cool pans on a rack for 10 minutes, then invert cakes onto racks, remove parchment, and cool completely.
08 -
Grind freeze-dried strawberries into a fine powder using a spice grinder, mini food processor, or by pounding in a sealed bag with a rolling pin. Ensure the grinder or tool is dry.
09 -
Beat cream cheese and softened butter on medium speed until pale and fluffy, approximately 2 minutes. Add powdered sugar, strawberry powder, and salt; beat on low speed until combined, then increase to medium speed until creamy. Add milk, one teaspoon at a time, if needed for spreadable consistency.
10 -
If cake layers are domed, trim tops flat. Place one layer on serving plate and spread with just under one-third of frosting. Add second layer; spread with another one-third of frosting. Use remaining frosting to cover sides. Garnish with sliced fresh strawberries and serve.