For the Banana BreadPreheat oven to 175 C/ 350 F degrees.Line a 9x5 inch loaf pan with parchment paper.Mix flour, cocoa powder, baking soda and baking powder in a medium bowl. Set aside.Combine the melted butter and sugars until incorporated. Mix in the eggs and mashed bananas. Pour the wet ingredients into the dry ingredients, mix until just combined. Add the chocolate chips and mix until incorporated.Bake 50-60 minutes.For The Chocolate GlazeHeat whipping cream and brown sugar in a small saucepan over medium heat until brown sugar has dissolved and tiny bubbles start to form on the edges. Stir in vanilla and butter until melted and turn off heat. Dissolve the instant coffee granules into the warm milk, and add this mixture to the saucepan. Add chocolate chips but do not stir, and let sit for 1-2 minutes.Mix the chocolate chips until fully incorporated. Cool completely and drizzle over bread.