3/4 c  Brown sugar
1/2 c  Cocoa
1 tb Cornstarch
1/2 c  Boiling water
3 tb Boiling water
1 ts Vanilla

Place the first 3 ingredients into a 4 cup pyrex measuring cup ( or tall
sided e safe container). Whisk the dry ingredients together until
thoroughly mixed and no trace of lumps exists.

Add 1/2 cup + 3 tablespoons boiling water to the dry ingredients and whisk
until smooth.

Microwave on HIGH for 4 minutes or until quite thick , stirring midway.
Keep a careful watch on it. It should not overflow but it will boil up
quite a lot.

Remove from microwave and stir in vanilla. Serve.

Net