Hawaiian Pineapple Muffins

Ingredients

• 4 cups sifted all-purpose flour
• 5 teaspoons baking powder
• 1/2 cup sugar
• 1 teaspoon salt
• 4 eggs, beaten
• 1-1/2 cups milk
• 1/2 cup butter or margarine, melted
• 1-1/2 cups drained crushed pineapple