2 oz bourbon 1/2 oz Aperol. 1/2 oz dry Vermouth. Stir over ice and serve up, says the recipe. Serve over rocks says I. Also says use rosemary infused Aperol which sounds great but I didn't have time. Will try it sometime. And to garnish with rosemary sprig and lemon twist but I don't do that for myself. Inb4 someone bitches about me drinking 🍸🍹🥃 cocktails