- The sour cream curdled. Why?
- Probably the temperature difference was too great, or the acidity of the soup (lemon) shocked it. Use heat equalisation!
Creamy chilled grape soup
This soup is the elegant crowning of the late summer harvest. While fruit soups often awaken canteen memories, this version resembles a light dessert more, with its spicy syrup and the silkiness of cream. The tannins in the grape skin and the acidity of the lemon perfectly balance the sweetness of the cream, keeping it refreshing.
Ingredients
500
g
Grapes (mixed red and white, seedless)
250
ml
Water
500
ml
Milk
200
ml
Sour cream (or single cream for milder taste)
50
g
Sugar (to taste)
2
tbsp
Lemon juice
1
stick
Cinnamon
3
pc
Cloves
1
pinch
Salt
Shopping List (0)
Equipment Needed
- Whisk: For lump-free thickening.
Allergen Information
Milk
Instructions
1
✓
Wash the grapes and remove stalks. Boil the water with the sugar, cinnamon, cloves and salt, then cook for 5 minutes so the spice flavours release.
Tip: Salt is essential in every sweet dish, as it highlights the fruit flavour and dulls cloying sweetness. (Flavour enhancement).
2
✓
Drop the grapes into the syrup and cook for 5 minutes. Do not overcook, keep them crunchy!
Tip: If you overcook, the grape skin peels off and the soup won't look appetising.
3
✓
Mix the sour cream until smooth with the milk in a small bowl. Ladle some of the hot soup liquid into it, mix, then pour this lukewarm mixture back into the pot.
Tip: This is called heat equalisation. If you pour cold sour cream directly into hot soup, it shrinks due to thermal shock (protein coagulation).
4
✓
Bring to boil just for a moment, then remove from heat. Stir in the lemon juice.
Tip: Always add lemon juice at the end, because in an acidic environment milk proteins curdle more easily when boiling.
5
✓
Chill completely (min. 2 hours in fridge), and serve ice cold.
Recipe FAQ
Ingredients
- 500 g Grapes (mixed red and white, seedless)
- 250 ml Water
- 500 ml Milk
- 200 ml Sour cream (or single cream for milder taste)
- 50 g Sugar (to taste)
- 2 tbsp Lemon juice
- 1 stick Cinnamon
- 3 pc Cloves
- 1 pinch Salt