1 1/2 shot of Mezcal (or Tequila)
1 dash of orange bitters
1 part of grapefruit juice
1/2 glass of ice cubes (or ice)
1 part of soda water
1 shot of grand marnier orange liqueur (or orange liqueur)
1 part of Orange Juice
Pour ingredients (except soda) into the beaker of a cocktail shaker. Mix gently, and pour into a glass half-filled with ice. Squeeze and drop one fresh lime wedge into the glass. Top with soda, and serve with a stirrer and a straw.