Smelt Velouté (Velouté d'Éperlans)

Ingredients

• 150 grams smelt fillets
• 350 grams fish flesh (whiting, pike-perch, or sole)
• 100 grams butter
• 1 large onion, finely minced
• 0.5 fresh lemon juice
• 1 liter ordinary velouté (velouté mère) or milk-based panade
• 2.5 deciliters sole fumet (concentrated sole stock)
• thickening liaison (egg yolk and cream)
• butter for mounting (monter au beurre)
• pinch cayenne pepper

Instructions

1. Braise (étuver) the smelt fillets and the mixed fish flesh with butter, the minced onion, and lemon juice until just tender.
2. Add this braised fish mixture to 1 liter of ordinary velouté (velouté mère) or milk-based panade. Continue cooking to completion, then strain through fine tamis (fine-mesh sieve).
3. Enrich the velouté with 2.5 deciliters of sole fumet (fumet de sole). Heat gently without allowing it to boil.
4. Final adjustment: bind with liaison (egg yolk–cream liaison) and butter for mounting (monter au beurre). Season gently with a pinch of cayenne pepper.
5. NOTE ON EXECUTION AND TIMING: Smelt has a pronounced aromatic character. The smelt flesh must be strictly limited to one-third of the total fish weight; the remaining two-thirds should be drawn from neutral-flavored fish such as whiting, sole, or pike-perch (dorée), which excel in this role. This proportion ensures the smelt's distinctive note remains discreet within the whole. Because fish-based veloutés deteriorate rapidly upon standing, prepare this soup no more than 30 minutes before service.
6. GARNITURE: Garnish with tiny quenelles made from a farce (forcemeat) of smelt and cream, mixed equal parts with whiting or sole farce.