To prepare a spiced banana cake with cinnamon and walnut t baked goods recipe, first combine the flour, baking powder, sugar, salt, cinnamon, and nutmeg. Add the dry ingredients to the wet ingredients and mix until combined. Pour the batter into the prepared cake pan and bake for 35 to 40 minutes or until toothpick inserted in the center comes out clean. Let the cake cool before removing it from the pan.