Dice your plantain and blend.

If you want it plain, just add a little salt and maggi. Then steam it. Otherwise, prepare like you would do moimoi. For more details, you can also check https://www.wivestownhallconnection.com/2018/10/unripe-plantain-moi-moi-recipe.html?m=1. The picture here is the baked one before putting it in the oven.