Fish Broth

Good fish broth is the foundation of dozens of soups, stews, and sauces, and making it from scratch takes barely more than half an hour. Fish heads and bones get sautéed in olive oil until golden, which builds a deeper, more complex flavor than just simmering raw bones in water. That browning step is what separates a bland fish stock from one with real backbone.

Onions, leek greens (the parts most recipes throw away), celery, thyme, and a spoonful of tomato paste round out the aromatics. The tomato paste adds a subtle savory depth and a faint color without making the broth taste like tomato soup. Everything simmers for just 25 minutes since fish bones release their flavor and gelatin much faster than meat bones.

Strain through a fine sieve for a clear, golden broth that’s ready to use as the base for Italian fish soups, seafood risotto, chowders, or any recipe that calls for fish stock.

Chef Tips

• Use heads and bones from mild white fish like snapper, cod, or sea bass. Oily fish like salmon or mackerel make a strong, overpowering broth
• Sauté the fish pieces until golden before adding water. This builds a richer, more savory flavor
• Don’t simmer longer than 25 to 30 minutes. Overcooked fish bones turn the broth bitter and cloudy
• Use leek greens that would normally go to waste. They add a mild, oniony flavor without the cost of using the white parts

Variations

• Add a splash of dry white wine with the boiling water for a French-style fumet
• Include a few black peppercorns and a bay leaf for a more aromatic broth
• Freeze the strained broth in ice cube trays for easy portioning when you need small amounts