Wash the spinach well and dry in a salad spinner or pat dry with a tea towel. Heat half of the butter in a large saucepan and cook the spinach over a high heat, stirring it every so often, for 3-4 minutes until it is wilted and tender. Tip into a colander and leave to drain.
Heat the rest of the butter in the same pan. Add the chanterelles and fry briefly for a minute, seasoning them li