Peach Muffins

Since it's nearly peach season, I have been looking for a good peach muffin recipe. This one turned out really well!

1/2 cup butter or margarine, softened
3/4 cup sugar
1 egg
1/2 cup sour cream
1 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1 1/2 teaspoons baking powder
1/2 tsp salt
1 tsp cinnamon
1 cup chopped fresh or frozen peaches
1 cup chopped pecans

Cream wet ingredients, then mix in dry, just until moistened. Stir in peaches and pecans. Bake at 400 degrees for 20-25 minutes.
I used Canola oil instead of butter and used 1 cup of wheat flour and 1/2 cup all-purpose flour to kick up the healthy factor.