Directions:

Step 1: Measure butterscotch and butter into a 2 cup (16 oz) glass. Microwave on high for 1 to 1½ minutes, or until syrup is bubbly and butter is completely incorporated.

Step 2: Stir and cool for 30 seconds, then slowly mix in club soda. Mixture will fizz quite a bit.

Step 3: Serve in two coffee mugs or small glasses; a perfectly warm Hogwarts treat for two!