Wash the banana, peel it, and mash it with a fork. Place the mashed banana in a bowl. Add the egg and milk. Mix and mash until the ingredients are combined. Then add flour, cocoa, sweetener, baking powder, and a pinch of salt. Mix and mash thoroughly until you achieve a thick and uniform consistency (without lumps).

Heat a pan over low heat. Drop about 1 tablespoon of batter per pancake onto the pan. Fry a few pancakes at a time, keeping space between each. Fry all the pancakes on very low heat, covered, for about 1.5-2.5 minutes on each side. Flip when the batter sets and small holes appear. Fry the other side for a slightly shorter time. Be careful not to burn the pancakes.

Enjoy warm or cold.