Step 1.
- Chill a cocktail glass by filling it with ice water.
Step 2.
- In a mixing glass, combine 1.5 ounces of sweet vermouth, 1 ounce of fino sherry, and 2 dashes of orange bitters.
Step 3.
- Fill the mixing glass with ice and stir until well chilled.
Step 4.
- Strain the mixture into the chilled cocktail glass.
Step 5.
- Garnish with an orange twist, expressing the oils over the drink before adding it.