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This delicious Potato and Onion Bake is the ultimate comfort food and a firm family favorite.

To make it, arrange scalloped potatoes on a base of caramelized onions, top with a mustard-and-garlic cream sauce, and bake it until bubbly and golden. Whatโs not to love?
Recipe Tip
You can make the dish in advance and reheat it 20 minutes before serving.ย
This easy recipe is an excellent alternative to plain oven-roasted potatoes, and a versatile side dish that pairs well with most proteins and a simple green salad. Serve it for everyday dinners, special occasions, and the holidays.
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Potato and Onion Bake
Equipment
- serving dish 29cm/ 11in
Ingredientsย
- 1 kg potatoes, 2 pounds
- 3 onions, medium
- 25 grams butter, 2 tablespoons
- 400 ml heavy cream
- 2 tablespoons mustard
- 2 cloves garlic
- 1/2 tsp nutmeg
- 100 grams cheddar, grated
- sea salt, to taste
- black pepper, to taste
- fresh thyme
Instructionsย
- Preheat oven to 180ยฐ C / 355ยฐF.
- Peel the potatoes.
- Slice the potatoes using a mandolin.
- Dice the onion.
- Heat the butter in a medium-hot pan (you can also use olive oil) and throw in the chopped onions.
- Fry until golden brown.
- Place the onion at the bottom of your serving dish. Use the back of a spoon to spread it around.
- Arrange the sliced potatoes around the dishโs perimeter, working your way towards the center.
- Mix the mustard, grated garlic, heavy cream, nutmeg, sea salt, and pepper.
- Pour the cream mixture over the potatoes.
- Top with the grated cheddar.
- Bake at 180ยฐ C / 355ยฐF for 40-45 minutes until the cheese is crispy and golden brown. You can grill for 2-3 minutes if you like โ keep an eye out that the cheese doesnโt burn.
- Remove from the oven and allow to set slightly.
- Sprinkle with fresh thyme and serve.
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.









