Mix the cocoa, sugar, and flour together. Add the
milk, making sure it mixes smoothly. Heat (medium)
and stir constantly until it thickens. This takes
about 8 minutes. Take off of heat. Add butter. Stir
until it is melted and mixed. Add vanilla and stir
until mixed.
Serve hot over buttered biscuits. Buttered toast will
do in a pinch.
Notes: This is an almost lost Ozark classic. It hardly
ever shows up in ethnic or regional cookbooks.
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!