
Peel 1 1/2 of the ripe plantains and add them to a blender with the eggs and milk. Blend until the mixture is smooth and creamy.



Add the ground oats, rice flour, all-purpose flour, honey, and baking powder to the blender. Blend again until fully combined, then let the batter rest while you prepare the pan.



Grease a large nonstick frying pan with the butter and sprinkle the brown sugar evenly over the bottom. Slice the remaining plantains thinly and arrange them in a single layer over the buttered, sugared base.



Fold the chocolate chips into the batter. Place the pan over low heat, pour the batter over the sliced plantains, cover with a lid, and cook for 15-20 minutes, until the top looks mostly set and the bottom is firm enough to move with a spatula.


Carefully flip the cake into a second lightly greased pan, or invert it onto a plate and slide it back into the pan. Cook for another 5-10 minutes over low heat, until the center is cooked through.


Turn the cake out onto a serving plate with the caramelized plantain side facing up. Let it cool for a few minutes before slicing and serving.