Rhubarb Meringue Squares Recipe

Ingredients

• 0.25 cup butter
• 0.25 cup white sugar
• 1 egg
• 1 teaspoon vanilla extract
• 1.25 cups all-purpose flour
• 1 teaspoon baking powder
• 0.25 teaspoon salt
• 3 cups chopped fresh rhubarb
• 0.5 cup white sugar
• 3 tablespoons water
• 0.5 teaspoon ground cinnamon
• 3 tablespoons cornstarch
• 2 egg whites
• 0.25 cup flaked coconut