Skinny Blackberry Margarita

For each Blackberry Margarita:

• 1 tablespoon sugar mixed with 1 tablespoon salt to rim the glass, lime wedge optional
• 1 ½ ounces silver tequila about 3 tablespoons
• 3 tablespoons freshly squeezed lime juice about 1 very large or 1 1/2 small limes
• 1 ½ tablespoons freshly squeezed orange juice about 1/2 medium orange
• 2 teaspoons light agave nectar or simple syrup add 1/2 to 1 teaspoon additional if you prefer a sweeter margarita
• ¼ cup blackberries about 6 large or 8 small; you can use fresh or frozen and thawed
• ice
• Additional lime wedges and berries for serving

For a Pitcher (5 drinks):

• 8 ounces silver tequila (1 cup)
• 1 cup freshly squeezed lime juice from about 5 medium/large limes
• 8 ounces freshly squeezed orange juice (from about 4 medium oranges) (1 cup)
• 3 tbsp plus 1 teaspoon light agave nectar or simple syrup
• 1 ¼ cups fresh blackberries