A one-liter bottle is enough for about 5 cocktail glasses
Pour 10 oz of red vermouth, 10 oz of Campari, and 10 oz of London dry gin into the bottle
Add 1.7 oz of almond paste and shake
Place the bottle in the freezer for 5 hours
Filter through cheesecloth into another bottle and place in the refrigerator
Serve in a cocktail glass
Garnish with caramel popcorn on a skewer