Chocolate gravy

1. Mixi the cocoa, sugar, and flour together.
2. Add the milk, making sure it mixes smoothly.
3. Heat (medium) and stir constantly until it thickens.
4. This takes about 8 minutes.
5. Take off of heat.
6. Add butter.
7. Stiri until it is melted and mixed.
8. Add vanilla and stir until mixed.
9. Serve hot over buttered biscuits.
10. Buttered toast will do in a pinch.
11. Notes: this is an almost lost ozark classic.
12. It hardly ever shows up in ethnic or regional cookbooks.
13. If this cools, it becomes something else: chocolate pudding! chocolate gravy is a great way to make sure your kids get their minimum daily requirement of sugar.