1 tbsp of cream
10 oz of root beer
2 oz of dr. mcgillicuddy's vanilla schnapps (or Vanilla Schnapps)
Fill a frosted beer mug with ice. Pour 1 1/2 to 2 ounces of Dr. Vanillacuddy's over ice, fill glass with root beer about 3/4 of an inch from the top. Top off with cream to taste.