Frozen Strawberry Basil Margaritas

STEP 1: Mix the rim: Combine granulated sugar and lime zest on a small plate, mixing well with a fork. STEP 2: Prep the glasses: Run a lime wedge around the rims of two margarita glasses. STEP 3: Coat the rim: Dip the rims into the sugar mixture to coat. Set aside. STEP 4: In a high-powered blender, combine ice, frozen sliced strawberries, frozen limeade concentrate, silver tequila, Cointreau, fresh lime juice, kosher salt, and fresh basil leaves. STEP 5: Blend on high speed until smooth and slushy. STEP 6: Serve in prepared glasses, garnish with lime wedges and fresh basil leaves.