[header] How to make chocolate and banana muffins [title] Preheat the oven to 320 degrees f , 160 degrees c, or on gas mark 2. [title] Mix all the dry ingredients together. [step] Combine in a bowl the flour, the brown sugar, the chocolate chips, the cocoa powder, the baking soda, and the baking powder. 
Mix thoroughly with a spoon to combine the ingredients as much as possible before beginning the next step. [title] Add the wet ingredients to the dry.