Christmas Negroni

Use these specified component styles: Carpano Antica Formula Vermouth.

Select and pre-chill an Old Fashioned glass.

Prepare an orange slice wheel for garnish.

Stir the Hayman's London Dry Gin, Carpano Antica Formula Vermouth, Becherovka liqueur, Strucchi Red Bitter, Hayman's Sloe Gin liqueur, and Difford's Falernum liqueur with ice.

Strain the mixture into the ice-filled Old Fashioned glass, preferably over a large cube or chunk of block ice.

Express the zest of an orange over the cocktail and use it as a garnish.