French · Sauce / condiment
Beurre de Montpellier
A vivid green herb butter of blanched watercress, spinach, parsley, chervil, chives, tarragon and shallot pounded with gherkins, capers, garlic and anchovy, enriched with egg yolks and olive oil. The classic partner for cold salmon and trout.

- YieldServes 8
- Hands-on35 min
- Total1 h 30 min
- Difficulty
Ingredients
Herbs
- 10 gwatercress leaves
- 4½ gflat-leaf parsley leaves
- 4½ gchervil
- 4½ gchives
- 4½ gtarragon leaves
- 4½ gshallot, chopped
- 1½ leavesspinach
Seasoning
- ½small cornichon
- 0.63 tspcapers, squeezed dry
- ½ ggarlic, a sliver
- ½anchovy fillet, drained
Butter
- 170 gunsalted butter, softened
- 1hard-boiled egg yolk
- 1raw egg yolk, very fresh or pasteurised
- 45 mlmild olive oil
- 1 pinchcayenne
- to tastefine salt
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