Preheat oven to 85℉. Mash bananas in the bottom of a stand mixer bowl, add water, honey and yeast. Allow to ferment for 10 minutes. Stir in 1 egg, butter, milk powder, salt, cardamom, and 2 cups of flour. Add an additional 1/2 cup flour and using a dough hook, knead until flour is incorporated. Knead in flour by the 1/4 cup ensuring flour is absorbed after each addition before adding more. Add flour and continue to knead until dough pulls away from the side of the bowl. Add pecans and knead until evenly distributed. Place dough in a greased bowl, cover and allow to rise at 85℉ or room temperature until double in size, approximately 1 1/2 hours.