Recipes >

Lucy Brennan's O Cocktail


  • Cocktail ice cubes for shaking and serving
  • 6 fresh mint leaves
  • 2 ounces Cruzan orange rum
  • 1 ounce fresh lemon-lime juice*
  • 1 ounce simple syrup**
  • Splash of soda water
  • 1 orange slice for garnish
  • 5 lemons (for fresh lemon-lime juice)
  • 5 limes (for fresh lemon-lime juice)
  • 1/2 cup water (for simple syrup)
  • 1/2 cup sugar (for simple syrup)

Prep Time:

10 Minutes

Cook Time:


An ideal cocktail for sipping on a warm summer evening. Read more about Lucy Brennan’s book here.

Why try? This was the cocktail all our chefs agreed was the best-tasting selection from Brennan’s cocktail “cookbook.” Crisp, refreshing with lovely orange flavor notes.


  1. Fill a tempered pint glass one-fourth full with ice and add the mint leaves. Fill the glass with ice.
  2. Add the rum, lemon-lime juice, and simple syrup.
  3. Cap the glass with a stainless-steel cocktail shaker and shake vigorously for 10 seconds.
  4. Pour the drink and ice into a Collins glass.
  5. Top off with the soda water. Garnish with the orange slice and serve.
  6. *For Fresh Lemon-Lime Juice. Roll each fruit back and forth on the kitchen counter while pushing on the fruit to release the juices. Cut the fruit in half crosswise.
  7. Squeeze the juice into a medium bowl, using a handheld stationary juicer.
  8. Combine the juices in a glass container and shake to thoroughly mix.
  9. Cover and store in the refrigerator for up to 48 hours. Makes 10 ounces.
  10. **For Simple Syrup. In a small stainless-steel saucepan, combine the water and sugar.
  11. Stir with a wooden spoon over medium heat until the sugar has completely dissolved.
  12. Remove from the heat and let cool to room temperature.
  13. Pour the syrup into a glass bottle with a pour spout. Cap, refrigerate, and use as needed. Makes 7 ounces.