Pour Schnapps (Dornkaat or other grain schnapps) into a beer mug, filling it to roughly one-third full.
Add lemonade to fill the mug most of the way, leaving space for ice cream.
Slowly add vanilla ice cream scoops one at a time, stirring gently from top to bottom with a tablespoon after each scoop until the mixture becomes white and foamy.
Do not drive or operate any motor vehicle after consuming this drink.