2 ounces tequila
1 ounce Grand Mariner
1 1/2 ounces simple syrup
1 ounce freshly squeezed lime juice
2 ounces grapefruit juice
1 dash of orange bitters
salt for the rim, lime/orange wedges for garnish
Rim the edge of your glass with a lime wedge and dip in margarita salt. Fill the glass with ice. In a cocktail shaker, combine tequila, Grand Mariner, simple syrup, grapefruit and lime juice with ice, and shake for about 30 seconds. Add a dash of bitters. Pour over ice and garnish with a slice of lime.