To make the chai spice. In a shallow bowl, combine the cinnamon, ginger, cardamom, nutmeg, all-spice, cloves, and pepper. You will not need all of this, save the blend for another use. Preheat the oven to 350° F. Grease a 9x5 inch bread pan.In a bowl, stir together the bananas, coconut oil, maple, eggs, and vanilla until combined. Add the flour, baking soda, 1-2 tablespoons chai spice, and salt, mix until just combined. Fold in the chocolate chunks. Spoon the batter into the prepared pan. Bake for 50-60 minutes, or until the center is just set. Remove and let cool slightly. To make the butter, whip together the butter and maple syrup until light and creamy, about 3 minutes using a hand whisk. Spread over the warm bread. Trust me it's delish.