MIDNIGHT MARGARITAS

2 oz. silver tequila
1 oz. triple sec
2 oz. fresh lime juice
1/2 oz. simple syrup
1/2 oz. blackberry liqueur
Black sanding sugar for rimming the glass
Ice, fresh blackberries, lime for garnish

Rim a glass with lime juice and dip in black sanding sugar. Fill the glass with ice. In a shaker, combine tequila, triple sec, lime juice, simple syrup, and blackberry liqueur with ice. Shake well until chilled. Strain into the prepared glass. Garnish with fresh blackberries and a lime wheel.