Janet's Banana Bread

This is a recipe that I got from one of my favorite imaginary friends! My kids LOVE this as a muffin and actually prefer this over every other muffin I have ever made on Muffin Wednesday! So simple and so yummy.
Janet’s Banana Bread
3 large very ripe bananas, mashed
1 c sugar
1/2 tsp baking soda
1 egg
1/4 c butter, melted
1 1/2 c. sifted flour (We do 3/4 c white, 3/4 c wheat)
1/2 tsp salt
1/4 tsp baking powder
1 c. nuts optional

Mash bananas, mix in sugar. Mix in egg. Mix in (very well) the melted butter. Sift dry ingredients into separate bowl, add to wet and stir just until mixed. Stir in nuts if desired. Turn into greased loaf pan, bake at 350º about 1 hour, or until done. For muffins put in 12 muffin cups and bake for 15-20 minutes