MUDDLE grapes in base of mixing glass. Add other ingredients, STIR with ice and fine strain into chilled glass.
Lemon zest twist (discarded) & white grape
White grape juice fortified with cognac and lightly sweetened by pineau des charentes with faint hints of chocolate.
Adapted from a recipe created in 2015 by Steve Lawson at M.A.S.H, Soho, London, England