Prepare a food processor and add the flour, baking powder, salt, and a little water. Process until the mixture resembles coarse semolina grains.

Fill a couscous pot (steamer) with hot water.

Place the couscous mixture in the steamer basket over the pot, cover, and steam for 30 minutes.

Remove the steamer basket from the heat, transfer the couscous to a large bowl, and fluff it with your hands. Return it to the steamer basket and steam again.

After another 30 minutes, transfer the couscous to a bowl, add the melted butter, and gently mix. Steam once more for 10 minutes, then remove from heat and let cool. When serving, top with powdered sugar and nuts as desired.

Enjoy!