Enjoy ruby red refreshment straight from a hot grill in this unusually delicious twist on the classic Mexican cocktail. Dip limes and grapefruit in sugar and caramelize on a hot grill to heighten the citrus flavors. Give your glasses a lime wheel rub and a dip in kosher salt, then fill with ice. Juice the grilled fruits into a pitcher and add tequila and simple syrup. Pour this tasty mix into your glasses and top with sparkling soda and a garnish of grilled lime wheels. Every sip is crisp and brings you closer to total refreshment. Get the recipe for Grilled Grapefruit Paloma Cocktail.