1. To make the pickled grapes, place all the ingredients except the grapes in a bowl and whisk together. Add the grapes, cover and chill for 30 minutes to an hour. The longer you pickle them, the tastier they will be.
2. Place the water, almonds and garlic into a blender and blend at a high speed until milky. Add the bread and blend until smooth. Season with salt, then blend in the vinegar and olive oil.
3. Strain the soup through a sieve into a sealable container, then chill for 2 hours.
4. To serve, divide the soup between bowls, top with a spoonful of the pickled grapes and rosettes of prosciutto. Drizzle with olive oil and serve.
Cook's note: Replace the grapes with fresh peeled melon slices for a refreshing and quicker solution.
Photography: Myburgh Du Plessis
Production: Khanya Mzongwana
Food assistant: Ellah Maepa