Sunny Lemon Cake

Ingredients (26)

• Lemon Cake:
• 2 cups all-purpose flour
• 2 cups sugar
• 2 teaspoons baking powder
• 1 teaspoon salt
• 3 large eggs, room temperature
• 1 cup buttermilk
• 1/2 cup unsalted butter, softened
• 1/2 cup margarine
• 2 teaspoons lemon zest, finely grated
• 1/4 cup lemon juice, freshly squeezed
• 1/4 cup lemon-lime soda
• 1 teaspoon vanilla extract
• Fresh Lemon Mousse Filling:
• 1/2 cup lemon juice, fresh squeezed
• 1 cup water, cold
• 1 package/2 1/4 teaspoons unflavored gelatin
• 1/2 cup sugar
• Pinch of coarse salt
• 1 cup ​heavy whipping cream, cold
• Fresh Lemon Frosting:
• 7 ounces cream cheese, softened
• 1 cup unsalted butter, softened
• 4 cups confectioners sugar
• 1 tablespoon lemon zest, finely grated
• 1/2 cup lemon juice, freshly squeezed