Start by salting the rim of your margarita glass. Rub a lime wedge around the edge and dip it into salt.

Fill a cocktail shaker with ice.

Pour in the tequila, lime juice, and simple syrup (if you're using it). Shake it up until it's well chilled.

Strain the mixture into your prepared glass.

Carefully pour the Grand Marnier over the top. It'll create a beautiful layer.

Garnish with a lime wheel. Enjoy!