Step 1

First, wash your hands for 20 seconds.

Step 2

Next, combine the contents of both bottles in a clean pitcher that can accommodate the 1.5 liters of total volume.

Step 3

Stir briefly to combine, then use a funnel to refill the empty bottles with the mixture and put tops back on.

Step 4

Place both full bottles in the freezer, wait a couple hours, and then pour yourself a martini, and another after that, and more for days to come!