Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
1         ounce         Tequila 
1/2       ounce         Sweet Vermouth 
1/2       ounce         Dry Vermouth 
1/2       ounce         Campari

Preparation:

Shake with cracked ice. Strain into chilled cocktail glass. Garnish with lemon twist.