How to Make a Casamigos Skinny Margarita

casamigos skinny margarita in rocks glass with lime

A Casamigos Skinny Margarita transforms the classic agave-forward cocktail into a lighter option by focusing on fresh ingredients and lower-calorie sweeteners. The goal: deliver clean, balanced citrus, vibrant tequila flavors, and a satisfying finish—without relying on sugary bottled mixes. Mastering this version means understanding ingredient choices, how different sweeteners shape the experience, and practical steps to trim calories without sacrificing taste.

Essential Ingredients for a Skinny Margarita

60 ml Casamigos blanco tequila (alternatively, Casamigos reposado for a mellower edge)
30 ml freshly squeezed lime juice
7.5–15 ml orange liqueur (such as Cointreau or a calorie-reduced triple sec), or substitute with 5 ml fresh orange juice for a lighter touch
7.5–15 ml low-calorie sweetener (see options below)
Ice cubes
Salt for rimming glass (optional)
Lime wedge or wheel for garnish

Steps to the Perfect Skinny Margarita

Prepare your glass: rub a lime wedge along the rim and dip into salt if desired.
Fill a shaker with ice.
Add 60 ml Casamigos tequila, 30 ml lime juice, your chosen orange element, and sweetener.
Shake vigorously for 12–15 seconds.
Strain into the prepared glass over fresh ice.
Garnish with a lime wheel.

Best Low-Calorie Sweeteners for Margaritas

Swapping out standard simple syrup makes the biggest calorie difference in a skinny margarita. Each option brings its own flavor, level of naturalness, and texture:

Agave syrup (use 7.5–10 ml): still agave-derived, more concentrated than sugar but fewer calories per ml; keeps a classic margarita note. Try diluted with a little water if it’s too thick.
Stevia or monk fruit syrup (5–7.5 ml): zero-calorie and plant-based, but can introduce a slight herbal/metallic aftertaste. Best in small quantities with a high-quality tequila.
Erythritol or allulose syrup: calorie-free, clean sweetness; some people notice a cooling effect—use sparingly.
Low-calorie simple syrup: homemade versions with sugar substitutes keep sweetness without much flavor alteration. Look for commercially available options labeled for cocktails.

various sweetener types in small jars on marble

Tips for Lower-Calorie Margaritas

Prioritize freshly squeezed lime over bottled juice; fresher juice requires less sweetener thanks to its natural brightness.
Use a top-quality blanco tequila like Casamigos for bold agave character, which lets you dial back added sugars.
Opt for 100% agave tequila—additives and cheaper blends often pack extra sugar.
Ditch orange liqueur entirely if calories are a concern, or replace with a splash of fresh orange juice (5 ml) plus a little orange zest for aroma.
Build the drink over ice in a rocks glass for a slower dilution and fresher sips—tall glasses and extra ice can tempt you to top with sugary mixers.

Tequila Selection: Does It Affect Calories or Flavor?

Most tequilas are nearly identical in caloric content (around 65–70 calories per 30 ml), but purity and style influence taste—and whether you'll need more (or less) sweetener for balance. Casamigos blanco is prized for its smooth, rounded agave profile with hints of citrus and herbs, needing only the lightest support from citrus and sweetener. Reposado adds caramel and oak tones, which some enjoy in a skinny margarita for extra depth. Avoid mixto tequilas, which can introduce off-flavors and require more sugar to smooth out.

blanco and reposado tequila bottles side by side

Balancing Taste and Calories: Final Advice

Taste as you go—start with the lower end of sweetener additions (7.5 ml), then fine-tune upward for your palate.
Emphasize fresh ingredients: freshly squeezed lime and high-quality tequila stand out and need little improvement.
Enjoy over plenty of ice for gentle dilution and a refreshing, extended drinking experience.