2 oz. Lemon Juice (Fresh) - (more) 2 oz. Light Rum - (more) 2 oz. Lime Juice (Fresh) - (more) 1 oz. Aguardiente - (more) 1 tsp. Grenadine - (more) 1 tsp. Orgeat Syrup - (more) Champagne (Or sparkling wine) - (more)
Shake ingredients (except champagne) with cracked ice and pour into a collins glass. Fill with champagne.