Steps
1. Cook cowpeas until soft but not squashy (about 60 mn). Leave some water in cowpeas to steam corn flour.
2. Mix corn flour with water to a crumbly consistency.
3. Make a hole in the middle of the cowpeas and pour corn flour into it.
4. Reduce fire and simmer until corn flour cooks (about 20 mn).
5. Remove from fire, stir in the cowpeas, corn flour, oil, pepper, and salt. Serve as a main dish.

Source
DOVLO, Florence E., WILLIAMS, Caroline E., ZOAKA, Laraba (1976), Cowpeas - Home preparation and use in West Africa (IDRC), ISBN 0-88936-071-5, reprint 1984, Ottawa

Serving
5 - 6