Ingredients
Method
Preparation
- Preheat the oven to 400°F (200°C) and butter a 2-quart casserole dish.
- Slice the potatoes into 1/8 inch thin slices. (A mandoline is your best friend here!)
Cheese Sauce
- In a saucepan, melt the butter and sauté the garlic for 1 minute.
- Add the flour and cook for 1 minute.
- Gradually whisk in the milk and cook until thickened.
- Stir in the cheeses, mustard, thyme, paprika, salt, and pepper until smooth.
Layering and Baking
- Layer half of the potatoes and onions in the casserole, pouring half of the cheese sauce over them, then repeat layers.
- Top with additional cheeses. Cover with foil and bake for 60 minutes.
- Remove the foil and bake for another 25-30 minutes until golden.
- Garnish with chives and parsley before serving.
Notes
Store leftovers in the fridge for about 3-5 days. For longer storage, freeze for up to three months in an airtight container. Reheat in the oven until bubbly. Experiment with different cheeses for added flavor.
