Ingredients
cake
9 tablespoons unsalted butter at room temperature
1 cup granulated sugar
3 large eggs separated
2 cups all purpose flour
1 Tbsp baking powder
1 tsp salt
1/2 tsp baking soda
1 cup plain greek yogurt
1 heaped cup raspberries
Lemon Buttercream
2 sticks (1 cup) unsalted butter, at room temperature)
5 cups confectioner's sugar sifted
juice of 1 and 1/2 lemons about 3-4 tablespoons
optional 1 small drop yellow gel food coloring
