Made a big ol' batch of Kevin Kos' grapefruit soda syrup and been trying anything and everything with grapefruit soda in the blistering summer heat. Campari and grapefruit soda is just an absolute joy in all its forms.
Hi Reuven, whatever Italian red bitter liqueur brand you have in your personal Cocktail Builder bar (e.g. Galliano L'Apertivo) then that's what will show in the recipe you see.