Fish Fumet

Fish fumet is the French fish stock that forms the backbone of so much seafood cooking, the base for chowders, sauces, seafood risotto, and poaching liquids. Unlike a meaty stock, it comes together fast: fish bones simmered with white wine, onion, carrot, and a bouquet garni for just 15 minutes.

That short cook is the single most important rule. Fish stock turns bitter and cloudy if you simmer it too long, so 15 minutes is the sweet spot, enough to draw out the flavor, but not so long that it goes off. Sweat the vegetables in butter without browning them to keep the fumet pale and clean.

After straining through a fine chinois, you reduce it by half to concentrate the flavor, then strain again for a clear, silky result.

Use bones from mild white fish and skip oily fish like salmon or mackerel, which make it heavy and strong. Done right, you’ll have a delicate, aromatic stock that lifts every seafood dish you add it to.

Chef Tips

• Simmer only 15 minutes. Fish stock turns bitter and cloudy if cooked too long.
• Use bones from mild white fish, not oily fish like salmon or mackerel, which make it strong and greasy.
• Sweat the vegetables without browning them so the fumet stays pale and clean.
• Strain through a fine chinois and reduce by half to concentrate the flavor.

Variations

• Add a few mushroom trimmings or a strip of lemon peel for extra aroma.
• Use it as the base for seafood chowder, bisque, risotto, or beurre blanc.
• Freeze it in portions for ready-to-use fish stock.