Bitter Bee Cocktail

Honey-Cardamom Syrup:

In a small saucepan, toast cardamom over medium-high heat until fragrant, 1 minute. Stir in 1/2 cup water and honey. Bring to a boil, then reduce heat; simmer 5 minutes. Let cool completely. Strain; discard solids. Refrigerate in an airtight container up to 1 week.

Cocktail:

Combine tequila, grapefruit juice, 3/4 ounce syrup, and bitters in a cocktail shaker. Fill halfway with ice. Shake until outside of shaker is frosty, about 30 seconds. Strain and serve on ice, garnished with grapefruit wedge.