Topping:
1/4 C oats
1/4 C flour
1/4 C brown sugar
3 tbs chopped pecans or walnuts
1 tsp cinnamon
1/4 C butter
Combine dry ingredients, add moist ingredients. Stir until just moistened; do not overmix.
Fill greased or paper-lined muffin tins 2/3 full. Sprinkle with topping. Bake at 400 degrees 15-20 minutes. Makes 18-20 medium muffins.