Thirsty for more Big O? Here, owners Kathy Kuper and Bill Foster share some of their favorite recipes using their famed ginger liqueur. Sultry Señorita Margarita “The Sultry Señorita Margarita was one of the first cocktails we created for Big O. And what a great creation! We made it for our table at a typical St. Louis Trivia Fundraiser – and it continues to have a place at the table. Big O adds a little sweetness and spice to these classic flavors while balancing and rounding out the drink.