Preparation Combine pineapple juice, tequila, Cointreau, orange juice, lime juice, and simple syrup in large pitcher. (Can be prepared 6 hours ahead. Refrigerate.) Add 3 cups ice cubes to pitcher and stir to blend well. Pour margarita into cocktail glasses. Garnish with pineapple spears and maraschino cherries, if desired, and serve.
Preparation Combine pineapple juice, tequila, Cointreau, orange juice, lime juice, and simple syrup in large pitcher. (Can be prepared 6 hours ahead. Refrigerate.) Add 3 cups ice cubes to pitcher and stir to blend well. Pour margarita into cocktail glasses. Garnish with pineapple spears and maraschino cherries, if desired, and serve.