See the link above for more information. The modified recipe I used:
2 oz Angel’s Envy Bourbon
1 oz Lemon Juice
1/2 oz Yes Cocktail Co. Passion Fruit Syrup
1/2 oz Yes Cocktail Co. Grenadine
Whip shake with crushed ice, pour into a Tiki mug, and top with crushed ice. I garnished with a mint bouquet and freshly grated nutmeg.