Smooth Homemade White Sauce

Most white sauces are a roux, flour cooked in butter and then loosened with milk. This one does things a little differently. A soft purée of cauliflower or doodhi (bottle gourd) does part of the thickening, so the flour can stay modest and the sauce still turns out silky. The vegetable has almost no flavour of its own once it is cooked down and strained, which is why the sauce tastes like milk and butter rather than like a vegetable. Doodhi is a common sight in Indian kitchens, a pale green gourd with mild, watery flesh that takes on whatever you cook it with. Cauliflower works just as well if that is what you have.

The one step I would not skip is the straining. A mixer gets the purée smooth, but fibres from cauliflower stems or gourd skin can still make a sauce feel grainy on the tongue. Push it through a fine strainer, and use the back of a spoon to coax the last of it through. It takes a minute and makes the sauce feel like the real thing.

A small tip on the stirring: once the milk goes in, keep moving the whisk or spoon across the base of the pan. Milk sticks and scorches faster than you expect, especially on a non-stick pan that has been running hot. If the sauce tightens more than you want, a splash of warm milk loosens it back up. If it seems thin, give it another minute on low heat; it thickens as it cools too, so do not panic and add more flour.

Storage is simple. Leftover sauce keeps covered in the fridge for a day or two. It will firm up and look a bit dull, and it may need a splash of milk and a gentle stir over low heat before it goes into anything. It does not freeze well, because the milk can separate, so I would make only what you need. If you are planning a baked dish, the sauce can be made ahead and warmed through just before it goes in the oven.

For serving, this is the sort of sauce that makes a plain plate feel finished. Spoon it over steamed vegetables, use it to bind a baked pasta, or thin it slightly and pour it over a stack of warm flatbreads. Flatbreads suit it especially well. A pile of Soft Gujarati Fenugreek Flatbreads with a little sauce tucked inside makes an easy lunch, and Chilled Mint and Flaxseed Raita on the side brings in a cool, sharp note that balances the richness.

If you want a heartier plate, try it alongside Stuffed Moong Dal and Spring Onion Parathas. The dal filling is earthy and savoury, and the sauce smooths it out nicely.