Banana Sour Cream Muffins

Ingredients:

In large mixing bowl, cream butter with sugar. Add the eggs and vanilla. Add dry ingredients all at once and stir just until blended. Add the mashed bananas, nuts and sour cream. Spoon into greased (or paper lined) muffin tins 2/3 full. Bake at 350° for 30 minutes. Makes 12-15 muffins.