2 C Water
1 1/2 C Sugar
1/2 C Brown Sugar
1 C Cocoa Powder
-Combine all ingredients, except vanilla in medium saucepan over medium high heat. Wisk constantly until all ingredients are blended with water.
-Bring to boil, boil 2 minutes. Remove from heat, stir in vanilla. Sauce will thicken as it cools.
-Store in airtight container in refrigerator.