Spread the batter out in the loaf pan and using a spoon press and small valley in the middle of the batter. (fooddoodles.com)
Layer brownie batter into your pan and bake for 20 - 25 minutes, or until a toothpick comes out completely clean when placed in the middle of the batter. (coconutoilcooking.com)
Second secret to success: adding a bit of chocolate in the middle of the batter. (pearltrees.com)