"I've tried a couple of butterbeer recipes I found online and they all were either so sweet they made me sick or they had oily butter in them that made me sick. so I opted for a simplified version that "tasted a little bit like less-sickly butterscotch." and was strong enough to slightly inebriate something larger than a house elf. Great for Harry Potter themed parties or Halloween and even served super chilled in a frothy mug can magically warm up even the coldest wizards."
In a frosted 14-16 oz mug or tankard combine rum and schnapps. Then add butter flavor to cream soda bottle and pour "roughly" into the mug in order to mix.Very slightly mix with spoon if necessary. Serve frothy and chilled.