Strawberry Layer Cake With Italian Meringue Buttercream

Ingredients

• 3 cups cake flour
• 1/2 teaspoon salt
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 3 cups sugar
• 1 cup butter softened to room temperature
• 7 large eggs yolks removed, use egg whites only
• 2 tablespoons pure vanilla extract
• 1 cup sour cream
• 2 1/2 pounds strawberries
• frosting I double this for a thicker
• 1 1/4 cups sugar
• 2/3 cup water at room temperature
• 7 egg whites jumbo
• 1 pinch cream of tartar
• 2 cups unsalted butter at room temperature, cut into tablespoons
• 1 teaspoon pure vanilla extract