- 1/2 cup white sugar
 - 1/4 cup margarine
 - 1 egg
 - 1 cup sour cream
 - 1 teaspoon rum flavored extract
 - 1 1/2 cups all-purpose flour
 - 1 teaspoon baking powder
 - 1/2 teaspoon baking soda
 - 1/2 teaspoon salt
 - 1 (15 ounce) can crushed pineapple, drained
 - 1/2 cup flaked coconut
 
- Preheat oven to 375 degrees F (190 degrees C). Lightly grease a muffin pan, or use paper liners.
 - In a large bowl, combine sugar, margarine, egg, sour cream and rum extract. Beat together until smooth. In a medium bowl, mix together flour, baking powder, baking soda and salt. Blend into egg mixture. Stir in pineapple and coconut. Divide batter into 12 muffin cups.
 - Bake in preheated oven for 20 to 25 minutes, or until the tops spring back when lightly tapped.