negroni★ ★ ★ ★ ★(491 ratings) Tweet this Recipe Share on FacebookPrep: 1 minMaking: 1 minTotal: 2 mins Serving: 1 cocktail Ingredients Gin 30ml / 1oz Sweet Vermouth 30ml / 1oz Campari 30ml / 1oz Slice of Orange to garnish. Recipe Add ice to an Old Fashioned Glass. Add Gin, Sweet Vermouth, and Campari, gently stirring. Garnish with a slice of Orange.