Greyhound cocktails are a refreshing and delicious way to enjoy vodka. There are many different recipes for this drink, but all of them include vodka, grapefruit juice, and sugar.

One of the simplest recipes for a greyhound cocktail is to mix 1 1/2 ounces vodka with 3 ounces grapefruit juice and 1/2 teaspoon sugar. stir well and serve cold.

Another recipe calls for 1 1/2 ounces vodka, 3 ounces grapefruit juice, 1/2 ounce lime juice, and 1/4 teaspoon sugar. stir …