This soft and fluffy cake has a surprising chocolate filling and a very sweet chocolatey cocoa frosting. I used a loaf pan of ~10 inches x 3,5 inches (25 cm x 9 cm) inner measure.
The top of the cake cracks very easily. To avoid this, here are some tips:
-Bake the cake in the mid-low rack of your oven
-Use a loaf pan big enough for this amount of batter. My loaf pan was probably a little bit too small.