The encyclopaedia of gravy
Deglazing is adding liquid to a hot pan and scraping up the browned residue — the fond — that roasting or frying leaves behind. It is where most of a pan gravy's flavour comes from.
When meat roasts, juices run out, hit the hot metal, dry and caramelise into a dark sticky layer. In French that layer is the fond — the foundation. It is the most concentrated savoury material in the kitchen, and it is glued to your roasting tin.
Deglazing gets it into the gravy.
Why it works¶
The compounds in fond are products of the Maillard reaction — the browning reaction between amino acids and sugars that gives roasted food its flavour. Crucially, most of them are water-soluble. Add any liquid and heat, and they dissolve straight back off the metal.
This is why a dry tin tastes of nothing and a deglazed one tastes of everything.
Method¶
- Remove the meat and pour off the fat, keeping the dark juices. Fat does not help you here.
- Set the tin over a medium heat. Two hob rings for a large tin, or transfer the contents to a saucepan if the tin is flimsy.
- Pour in your liquid — 100–200 ml. It should sizzle hard.
- Scrape immediately with a flat-edged wooden spoon, working over the whole base. You will see the liquid darken as the fond dissolves.
- Reduce by about half if you used wine, cider or beer, to cook off the raw alcohol.
- Carry on with the gravy.
💡 Chef's tip
Scrape the corners and the sides, not just the middle. The tin's corners collect the darkest, most concentrated fond.
Choosing the liquid¶
| Liquid | Best with | Notes |
|---|---|---|
| Red wine | Beef, lamb, venison | Reduce well; raw wine tastes harsh |
| White wine | Chicken, pork, turkey | Lighter, sharper |
| Dry cider | Pork, sausages, gammon | Reduce by half — it is sour otherwise |
| Beer or stout | Beef, pies, sausages | Bitter if not reduced; add a pinch of sugar |
| Madeira, port, sherry | Turkey, game, Christmas | Sweet — use sparingly |
| Stock | Anything | Always safe, never exciting |
| Water | Anything | Genuinely fine. The fond is the flavour |
When not to deglaze¶
If the tin has burnt. Black residue is acrid, not rich. The difference is visual: dark brown and glossy is fond, matte black and dry is carbon. Scrape the black bits out and discard them before you add any liquid, or start in a clean pan.
If the tin is aluminium and you're using a lot of wine. Prolonged acid on bare aluminium can give a metallic taste. Transfer to a saucepan.
Deglazing a frying pan¶
Exactly the same, at smaller scale. After frying sausages, chops, steak or burgers, pour off the fat, add a splash of stock or wine and scrape. Three minutes gives you a pan sauce that turns a weeknight dinner into something better. See pan gravy.