After a lot trial and error I perfected the Negroni during the lockdown:
1 part Antica Formula
1 part Campari
1 part Oxley Gin
First pour the ingredients in a container with a few regular sized ice cubes and stir (don't shake, the kinetic energy will melt to much ice). Then serve it with one big ice cube and a slice of orange.
I've tried a lot of variants but never found any combination that beats the classic 1 - 1 - 1 version and the Antica Formula sealed the deal.