5 cups whole milk (or you can do a mixture of milk and cream or half-and-half)
1 1/2 cups bourbon
1/2 cup sugar (more or less, to taste)
1 tablespoon vanilla extract
ice
Freshly grated nutmeg, for garnish
Combine all ingredients in a blender at high speed until smooth. Divide into glasses, garnish with nutmeg and enjoy!