Pineapple Margaritas

Bahan-bahan (4 porsi)

• 1 cup good tequila
• 1 cup pineapple juice
• 1/4 cup freshly squeezed lime juice
• 6 tablespoons triple sec
• 4 teaspoons granulated white sugar
• 2 tablespoons Cointreau or Grand Marnier
• crushed ice
• lime slices or pineapple slices for garnish, (optional)