1/4 cup sweetened condensed milk
1/4 cup butterscotch topping
2 Tablespoons whipped butter, room temperature
1 1/2 cups vanilla cream soda
Combine condensed milk, butterscotch topping and butter in a glass heatproof measuring cup. Heat in microwave for 1 minute. Remove and stir until butter has melted and incorporated into mixture. Meanwhile heat cream soda in another heatproof measuring cup for 1 minute 30 seconds.
Divide butterscotch mixture between two 10 to 12 ounce mugs. Fill mugs with heated cream soda and stir thoroughly. Serve garnished with an old fashioned butterscotch candy stick.