1.25 oz. BD 10yr Old or Small Batch Bourbon
0.5 oz. Campari
0.25 oz. Yellow Chartreuse
0.25 oz. Sweet Vermouth
2 Dashes Orange Bitters
Rinse a glass with scotch and set aside. Add all ingredients (except scotch) to a shaker with ice and shake to combine. Double strain into prepared glass, add a large piece of ice and garnish with an orange twist.