Step 1

Blend ice (2 cups), pineapple chunks (3 cups), lime juice, tequila (1 cup), triple sec (1/2 cup), limeade (3/4 cup), and water (1 cup) in a blender until smooth.

Step 2

Place coarse salt or Tajín in a shallow dish. Rub rims of cocktail glasses with lime wedges, then dip in coarse salt or Tajín, coating well.

Step 3

Pour margarita in glasses and serve.