In a large bowl, cream the butter and sugar until light and fluffy. Beat in the egg, sour cream and extract. Combine the flour, baking powder, baking soda and salt; stir into the creamed mixture just until moistened. Fold in the pineapple, coconut and pecans., Fill 12 greased or paper-lined muffin cups two-thirds full. Bake at 375° for 22-25 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pan to a wire rack. Freeze option: Freeze cooled muffins in an airtight container. To use, thaw at room temperature or, if desired, microwave each muffin on high for 20-30 seconds or until heated through.