Mama's Best Banana Bread

This is my Mama's best banana bread recipe made gluten-free. Luckily it tastes just the same as when she used to make it for me as a child, I just happen to feel better eating it this go-round!

Ingredients
1 egg
3 ripe bananas, mashed
1 cup white sugar
1/4 cup melted butter
1 1/2 cups GF flour (bistro blend all-purpose GF flour)
1 tsp baking soda
1 tsp salt
1/2 cup chopped walnuts (optional)

Pre-heat oven to 350° F. Using a standing mixer beat egg slightly, then add sugar and melted butter. Beat until well combined. Add mashed bananas and continue to beat on slow-medium speed for about 1 minute. Add flour, soda and salt into mixture. Beat until smooth. Fold in walnuts.  Pour into a greased (with butter) and floured (using GF flour) bread loaf pan. Bake for 55min to 1 hour at 350° F.