In a small sauce pan, add 1 cup of water and 1 cup of cocoa. Whisk over medium low heat. Slowly add additional water until the mixture is fully liquid. This may be less than the remaining half cup.
Slowly heat to simmering while whisking. Sauce will slightly thicken. You want a cream texture, not a water texture. Remove from heat. Add vanilla and stir.
Whisk in honey.
Add to airtight container and refrigerate. Will thicken a bit as it cools but will remain syrupy.
Mama Toni's Family Recipes 