01 - Preheat oven to 350°F. Grease and flour two 8-inch round cake pans and line the bottoms with parchment paper.
02 - In a medium bowl, whisk together the flour, baking powder, baking soda, and salt until evenly distributed.
03 - In a large mixing bowl, beat the softened butter and granulated sugar using an electric mixer until light and fluffy, approximately 3 minutes.
04 - Add the eggs one at a time, mixing thoroughly after each addition. Stir in the vanilla extract, fresh lemon juice, and lemon zest until well combined.
05 - Add the flour mixture in three additions, alternating with the buttermilk in two additions, beginning and ending with the flour. Mix until just combined to avoid developing excess gluten.
06 - Gently fold the mashed, well-drained strawberries into the batter using a spatula. Be careful not to overmix, which can toughen the crumb.
07 - Divide the batter evenly between the two prepared cake pans. Smooth the tops and tap the pans gently on the counter to release any trapped air bubbles. Bake for 30 to 35 minutes, or until a toothpick inserted in the center comes out clean.
08 - Let the cakes cool in their pans for 10 minutes, then invert onto wire cooling racks to cool completely before frosting.
09 - Beat the softened cream cheese and butter together until creamy and smooth. Add the strained strawberry puree, lemon juice, and lemon zest. Gradually beat in the sifted powdered sugar and a pinch of salt until the frosting is light, smooth, and fluffy.
10 - Once the cake layers are completely cool, spread an even layer of frosting between the two layers, then cover the top and sides of the cake with the remaining frosting. Garnish with sliced strawberries, lemon wheels, and edible flowers as desired.