Coconut Lime Cake

Ingredients

• 2 cups granulated sugar
• 1 1/2 cups butter plus 1 cup, softened
• 5 large eggs, separated
• 1 teaspoon coconut extract
• 1 teaspoon vanilla extract
• 3 1/2 cups all purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 1/4 cup coconut milk
• 1 cup buttermilk
• 1/4 cup lime juice
• 1 teaspoon lime zest
• 5 cups confectioner's sugar
• coconut flakes, for garnish
• raspberries, for garnish
• 1 lime, cut into slices, for garnish