Double pineapple upside-down cake recipe, step-by-step: A classic 1950s skillet dessert - Click Americana

Ingredients

• 2 cups crushed pineapple
• 1/4 cup butter or margarine
• 3/4 cup brown sugar
• 1/4 cup shortening
• 1/2 cup granulated sugar
• 2 eggs, separated
• 1-1/4 cups cake flour
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/4 teaspoon salt
• 1/4 cup milk or water
• 1/2 teaspoon vanilla