Fresh Pineapple Margaritas

3 cups fresh pineapple chunks (about 1 pound)

1 cup fresh lime juice

1 cup tequila blanco

1/2 cup Cointreau (or any orange liqueur)

1/4 cup agave nectar (if needed to sweeten)

coarse Kosher salt

lime or pineapple wedges, for serving (optional)

Place pineapple, lime juice, tequila, and Cointreau in a blender and pulse until smooth. Add agave to taste, if needed to sweeten.

Serve immediately in salt-rimmed glasses over ice. Garnish wish lime or pineapple wedges.