2 tablespoons vegetable oil
2 tablespoons orange juice
2 tablespoons lemon juice
1 teaspoon Campari
1/2 teaspoon lemon zest
1 tablespoon Worcestershire sauce
1/4 cup olive oil
Heat oil in a medium saucepan over medium heat. Bring to a boil, stirring constantly. Boil for 5 minutes. Remove from heat and stir in orange juice, lemon juice and lemon zest.
Stir into boiling mixture and stir briefly until heated through. Serve hot.