Ingredients
Grated zest of 20 lemons
Grated zest of 2 oranges
1 bottle (750 ml) 190-proof clear grain alcohol
6 ounces Grey Goose orange vodka or other orange vodka
4 cups simple syrup (see note, below)
Preparation
Combine the citrus zest, grain alcohol, and vodka in a large glass jar. Cover and set the jar in a cool, dark place for 7 to 10 days to infuse the alcohol with the flavorful citrus oils
Strain the alcohol into a large glass jar. Mix in the simple syrup, stirring to combine. Store the limoncello tightly sealed in the refrigerator, where it will keep for weeks.