Preheat oven 400 degrees Combine flour, sugar, baking powder, cinnamon and salt; make a well in center. In another bowl combine milk, bananas, butter and eggs; add to well in the dry ingredients. Add chips and 1/2 c nuts, stir until dry ingredients are just moistened. Spoon mixture into greased or paper lined muffin cups. Filling each one 3/4 full. Sprinkle approximately 1 tsp chopped nuts over each muffin. Bake 18-20 minutes Cool 5 minutes, and then remove from pans. Makes 9 3" muffins NOTE: this is made for the JUMBO muffin tins.