Cancoillotte or cancoillotte is a cheese speciality referring to a French processed cheese made mainly in Franche-Comté, but also in Lorraine and Luxembourg (where it is called Kachkéis).

It is made from curdled skimmed milk (metton). It is a typical cheese of the Franc-Comté cuisine.

It is a lean cheese (not an industrial product), with a fat content of 8 to 11% due to the butter added during the melting process.

During the Second World War, the sale of metton was free in France, as it did not contain any fat, whereas all other fatty products were subject to rationing.

The flavour of this cheese has evolved and two cancoillottes, one with a stronger taste, exist.cancoillotte is a cheese with a creamy and slightly liquid texture made from skimmed and curdled cow's milk. It is made by melting metton (skimmed cow's milk, curdled, pressed and then crumbled and fermented) in water (or milk) and then melting it with butter, packaged in jars of 30 g to 5 kg.

The name, attested since the end of the 19th century, comes from the coille, a Franc-Comtois derivative of the verb "to curdle", and thus designates the skimmed milk obtained after extraction of the cream, which makes it a very low-fat cheese (around 5%).

The metton (very fragrant hard grains the size of a hazelnut) is melted over a low heat in a little water or milk before adding salt. Cancoillotte is eaten hot or cold.

Hot, it is often associated with a Comtoise plate with potatoes and a Morteau sausage or a Montbéliard sausage. The "patate coyote", and more particularly the sausages served with it, are a typical Franc-Comtois speciality.

This dish is eaten in conjunction with vin jaune, and can be followed by a salade comtoise to keep the meal entirely traditional.

It is also used to make another Franche-Comté speciality: chicken with cancoillotte.

Cold, it is eaten with a spoon, alone or on a slice of bread, buttered or not, possibly accompanied by nuts and a Comtois wine. At room temperature, it is an extremely runny cheese which requires some precautions:

Cancoillotte is more suitable for domestic consumption at home than for a picnic, for example.