Ingredients:
-Juice 1 large pink/red grapefruit (approx. 1 cup)
-2 tbsp fresh lime juice
-3 oz or 6 tbs Titos Vodka
-1 ½ oz triple sec
-½ cup tonic
-Ice
Directions:
1. Add all ingredients and shake
2. Pour into chilled wine glass or highball glass
3. Garnish with sliced grapefruit