Chocolate Gravy

Directions

1. 1
   Put cocoa in medium saucepan.
2. 2
   Add sugar and flour; mix well dry before heating.
3. 3
   Then add very warm water and stir.
4. 4
   Add salt and vanilla.
5. 5
   Add milk and heat on medium-high.
6. 6
   Stir contents constantly with spatula to keep from burning.
7. 7
   When desired thickness is reached, add butter.
8. 8
   Serve over hot, buttered biscuits.