Ring in the holidays with a delicious, refreshing, party pleasing winter cocktail featuring Kahlúa coffee liqueur. The Kahlúa Cold Brew Martini is an easy to make Holiday cocktail that is guaranteed to keep the festivities rocking around the Christmas Tree. In just 3 easy steps, you can make this Holiday cocktail for your friends and family . Step 1 - Pour 1 part vodka. Step 2 - add 2 parts Kahlúa Step 3 - add 3 parts cold brew. Serve over ice. Happy Holidays!