User:Burl

Well, I've retried something from Wikipedia's recycle bin:

Ingredients:
 * 8 oz cream soda
 * 2-3 tbsp butterscotch syrup (or butterscotch schnapps for the alcoholic version)
 * 2 tbsp milk

Instructions:
 * Whisk ingredients together. If desired, it can be heated in a microwave, but not too much, or the soda will go flat and not taste quite right. Other recipes, including those for hot & frothy butterbeer (using hot chocolate and butterscotch chips), adult butterbeer (very alcoholic), and more are also available from various websites.