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Spiced Bourbon Vanilla Slammer

Prep Time20 mins
Total Time20 mins
Course: cocktail
Keyword: bitters, bourbon, fennel, vanilla
Servings: 1


  • 2 oz fennel simple syrup
  • 1.5 oz bourbon
  • 1/4 tsp pure vanilla extract
  • 2 dashes Angostura bitters
  • the juice of one lemon
  • top with seltzer water or sparkling mineral water 

Fennel Simple Syrup

  • 1/2 tsp fennel seeds
  • 1 cup water
  • 1 cup cane sugar


  • Make the fennel simple syrup. Add the fennel seeds, sugar and water to a small saucepan. Bring to a boil, then reduce heat to medium and simmer for 5 minutes, stirring occasionally until sugar is fully dissolved. Once sugar is dissolved and syrup is slightly thickened, turn off heat and allow to cool to room temperature.
    2. Strain into a jar or airtight container and store in the refrigerator until ready to use. Makes about 1.5 cups, and keeps up to 2 weeks in refrigerator.
    3. Make the cocktail. Add fennel syrup, bourbon, vanilla, bitter and lemon juice to a cocktail shaker or mason jar and shake vigorously. Fill a cocktail glass with ice, and pour over. Top with seltzer water or sparkling mineral water. Garnish with lemon wedge, of desired. Cheers!