1. To prepare a whole round fish, first scale it. Hold fish and, with back of a knife, scrape against grain of scales in short movements to remove them. Work from tail to head on both sides.

2. Run a hand along fish to feel if it’s smooth and all scales are removed. Rinse well when finished.

What to read next

3. To gut, insert a sharp knife at hole towards rear of stomach and carefully slit skin up to gills scoop out roe if there is any, then pull out guts. They should come out in one go, but check cavity for any excess.

4. Use a teaspoon or knife to break bloodline, inside at back. Wash outside and cavity of fish thoroughly under cold running water, being careful not to damage flesh.

5. To fillet, lay fish on a board and pat dry. With scissors, snip off all fins. Take a sharp fish filleting, or slightly flexible knife, and score a cut at tail of fish. Slice around head, cutting through until knife hits bones.

6. With flat of knife against backbone, slice along backbone, from head down to tail. With tip of knife, use gentle sweeping cuts to gradually slice fillet away, work from backbone down to belly. At belly, cut fillet away from fish.

7. Turn fish over and repeat, to remove second fillet then trim fillets of excess fat, taking care to retain their shape.

Use your skills to make these triple-tested recipes:
Provençal fish fillets recipe
Smoked fish platter recipe
10 showstopping fish main courses

Professional "S" vegetable knife, Loft 24 piece dinner set, Pro filleting knife, Zwilling J.A. Henckels. Black multi tools shears, Kuhn Rikon UK.. Blue-sided chopping board, chef's own.

Headshot of The Good Housekeeping Cookery Team

An experienced and highly skilled team of food writers, stylists and digital content producers, the Good Housekeeping Cookery Team is a close-knit squad of food obsessives. Cookery Editor Emma Franklin is our resident chilli obsessive and barbecue expert, who spends an inordinate amount of time on holidays poking round the local supermarkets seeking out new and exciting foods. Senior Cookery Writer Alice Shields is a former pastry chef and baking fanatic who loves making bread and would have peanut butter with everything if she could. Her favourite carb is pasta, and our vibrant green spaghetti is her weeknight go-to. Lover of all things savoury, Senior Cookery Writer Grace Evans can be found eating crispy corn and nocellara olives at every opportunity, and will take the cheeseboard over dessert any time (though she cannot resist a slice of tres leches cake). With a wealth of professional kitchen know-how, culinary training and years of experience between them, they are all dedicated to ensuring every Good Housekeeping recipe is the best it can be, so you can trust they’ll work (and if they don’t – we’ll have the answer for why*) every time (*90% of the time the answer is: “buy an separate oven thermometer”!).