1/2 cup butter or margarine, softened
3/4 cup granulated sugar
1/2 cup sour cream
1 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1 1/2 teaspoons baking powder
1 cup chopped fresh or frozen peaches
1 cup chopped pecans
Preheat oven to 400 degrees F.
In a mixing bowl, cream butter and sugar. Add egg, sour cream and vanilla extract; mix well.
Combine flour and baking powder; stir into creamed mixture just until moistened. Fold in peaches and pecans. Fill greased or paper-lined muffin cups three-fourths full. Bake for 20 to 25 minutes or until muffins test done.
Cool for 10 minutes; remove from pan to a wire rack.
Yields 1 dozen.