Frankfurter Grüne Soße (Frankfurt Green Sauce)

Steps

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1. 1
   Cut the chives into thin rings, preserving their delicate texture and flavor.
   ▶ ≈1:28
2. 2
   Chop half of the parsley finely, reserving the other half for later. Trim it slightly and use short, controlled chopping motions to mince it.
   ▶ ≈2:07
3. 3
   Remove the tough stems from the sorrel and chop the leaves finely.
   ▶ ≈3:00
4. 4
   Take the delicate chervil leaves, remove the stems, and chop gently. Chervil is fragile so handle it with care.
   ▶ ≈3:13
5. 5
   Feel the small hairs on the underside of borage leaves. Remove the stems and use only the leaves, chopping them finely. Borage has an intense, distinctive flavor.
   ▶ ≈3:42
6. 6
   Gently separate the watercress and salad burnet leaves and transfer to the food processor. Remove any thick stems.
   ▶ ≈4:28
7. 7
   Add the reserved parsley, watercress, and salad burnet to the food processor.
   ▶ ≈4:41
8. 8
   Add the sour cream and yoghurt to the processor.
   ▶ ≈4:52
9. 9
   Add a squeeze of lemon juice to brighten the flavors.
   ▶ ≈5:03
10. 10
    Process the mixture until finely chopped but not completely smooth, preserving the green herb texture and slight chunkiness.
    ▶ ≈5:12
11. 11
    After cooling, fold in all the hand-chopped fresh herbs (chives, parsley, sorrel, chervil, and borage) to incorporate them gently.
    ▶ ≈5:45
12. 12
    Season with salt and black pepper to taste.
    ▶ ≈6:03
13. 13
    Refrigerate the finished sauce and serve alongside hard-boiled eggs and boiled potatoes.
    ▶ ≈6:27