These cheesy scalloped potatoes make a delicious side dish for any roast. Very easy to make, rich and flavourful, they are a great alternative to the traditional roasted potatoes for your Thanksgiving or Christmas dinner.
Stir until the sauce thickens slightly, then add the cheddar and parmesan cheese together with the double cream.
Mix in the dijon mustard and season with nutmeg, salt and pepper.
Slice the potatoes thinly , then arrange one layer in a non-stick baking dish that has been greased with butter, so that each slice is overlapping.
Repeat with some more sauce, then another layer of potatoes and sauce again.
Remove the foil and bring the temperature to 220 degrees C ( 410 Fahrenheit) for the last 15 minutes, so the top can become golden.