4 cups of lemon peel steeped in vodka or Everclear (after removing the lemon peel)
which is step 1 of my limoncello recipe you can find here
please note...you will need the lemon peels to steep for the specified time
4 cups whole milk
2 1/2 cups sugar
2 cups water
Place milk, sugar and water in a heavy saucepan. Bring to a boil and remove from heat. Repeat the boiling process 3 more times.The repeated boiling minimizes the chances of the milk curdling when adding the limoncello. Remove from the heat and let cool a bit (maybe 5 minutes). Stir in the limoncello. Pour in sterilized bottles through a sieve using a funnel. Let sit for a few days before drinking (a week is best).
This tastes best cold, and I suggest storing in the fridge or freezer