Prep time: 2 minutes
1.5 ounces Breuckelen Glorious Gin
1 ounces sour beer
1/2 ounces rosemary syrup
1/2 ounces lemon juice
1/4 ounces yogurt whey
1. In a cocktail shaker filled with ice, combine all ingredients and shake.
2. Mist with angostura bitters and garnish with a rosemary sprig. Serve neat.