Description Tonic Pamp is a Cocktail made from Briottet Liqueur de Pamplemousse An easy recipe, perfect for summer aperitif! Recipe card Ingredients - 1 Pers. Liqueur de Pamplemousse - 4cl Gin - 2,5cl Tonic (like Schweppes) - 10cl Rosemary - 1 branch Preparation Add all the ingredients one by one : grapefruit liqueur, gin and tonic. Decorate with a branch of rosemary that will add an extra touch of freshness to your cocktail.