Why Does Fondue Separate?

If a fondue is starting to separate then adding cornflour (cornstarch) mixed with a little cold water usually brings it back together again as the cornflour binds moisture to the cheese solids. However if the fondue has turned into a solid lump of cheese then it is most likely that it has been overheated.

How do you keep a fondue from separating?

As best fondue practice, melt cheese very gradually on low, even heat. This will prevent any separation of fats in the melting cheeses. Adding a handful at a time, incorporate shredded cheese until melted.

How do you fix fondue watery cheese?

How to Fix Fondue That's Too Thick or Too Thin. If your fondue gets too thick, increase heat slightly, add a splash of white wine or lemon juice, and stir. If it gets too thin, decrease the heat and add more cheese.