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How to Make Stock From Kitchen Scraps

The CulinaryFlow Team · October 2026 · 3 min read

Turn onion ends, veg peelings and a roast chicken carcass into rich homemade stock — what to save, what to leave out, and how to store it.

How to Make Stock From Kitchen Scraps

Homemade stock costs almost nothing, because it’s made from things you’d otherwise throw away. It makes soups, risottos, gravies and stews taste noticeably better — and you control the salt.

Start a scrap bag

Keep a large freezer bag in the freezer and add trimmings as you cook. When it’s full, it’s stock day.

Chicken stock from a roast carcass

Vegetable stock

Cover your scraps with cold water, bring to a simmer and cook for 45–60 minutes. Vegetable stock doesn’t improve with hours of cooking — after about an hour it starts to taste stewed. Strain well.

Don’t salt it yet

Leave the stock unsalted. You’ll often reduce it in a sauce, which concentrates any salt. Season the finished dish instead.

Cool and store it safely

Ways to use it

Soups and risotto are obvious, but try cooking rice, couscous or lentils in stock instead of water, adding a splash to pan sauces and gravy, or making a quick noodle soup with leftover chicken.

The carcass came from a roast? Our leftover roast chicken ideas use up the rest of it too.

Cook tonight

How to Make Stock From Kitchen Scraps — with CulinaryFlow

Cook something with your stock →

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