Preheat oven to 350F and grease a loaf pan (8″x4″). Mash the bananas in a large bowl leaving no big chunks (small chunks are fine). Pour in the melted butter and add in the brown sugar. Mix together and set aside.
In a separate bowl, combine the flour, baking powder, baking soda, salt, nutmeg, allspice, and ground clove.
Slowly fold in the dry ingredients to the wet until combined. Pour into the greased loaf pan and bake for 50-60 minutes until the top is golden brown (a toothpick comes out clean).