1 3/4 cups cold milk
2 fluid ounces butterscotch schnapps
2 fluid ounces Irish cream liqueur (such as Bailey’s®)
1 fluid ounce vodka
1 fluid ounce coffee-flavored liqueur (such as Kahlua®)
1 (3.4 ounce) package instant butterscotch pudding mix
Stir milk, schnapps, Irish cream liqueur, vodka, and coffee-flavored liqueur together in a bowl. Add pudding mix and blend thoroughly. Spoon into disposable shot cups and refrigerate until chilled, at least 30 minutes.