Carefully pour mixture into the center of glasses (avoiding salt), leaving room to top off.
In the center of each glass, add a float Grand Marnier on top. Garnish with an orange slice and serve.
2 ounces Grand Marnier, 1 orange slice
Notes
Fresh lime juice gives the best, fresh flavor. Squeeze up to 48 hours in advance if needed.
Don't skip the float! Serving Grand Marnier on the top makes this margarita taste and feel special as it slowly seeps into the cocktail. Serve on top or in a shot glass on the side.
Use crushed ice if possible. It adds amazing balance.
Best Tequila for Cadillac Margaritas
Blanco (also known as silver) tequila are not aged and have sweet agave flavor! Patron Silver, El Tesoro Blanco Tequila, Casamigos Blanco Tequila are among my favorites.Reposado and Añejo tequila is aged in oak barrels for rich flavor and color. Patron Añejo and Camerena Reposado are my personal favorites.Use your favorite high quality tequila.