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Au Gratin Potatoes

cook:

1 h 0 min

I am using Yukon gold potatoes but you can use any kind of potato you'd like.

8 servings

US

original

metric

Picture for Au Gratin Potatoes

8 servings

US

original

metric

Ingredients

Directions

Ingredients

or 3 lbs Yukon gold potatoes

2 or 3 lbs Yukon gold potatoes

butter + more for baking dish

3 tbsp butter + more for baking dish

onion, thinly sliced

1 onion, thinly sliced

salt

2 tsp salt

black pepper

1 tsp black pepper

onion salt

1 tsp onion salt

garlic

4 cloves garlic

all purpose flour

¼ cup all purpose flour

heavy cream

2 cups heavy cream

sprigs thyme

7 sprigs thyme

sour cream

1 cup sour cream

cheddar cheese, grated

1 ½ cups cheddar cheese, grated

gouda, grated

1 ½ cups gouda, grated

Get ingredients with

Directions

Directions

Ingredients

or 3 lbs Yukon gold potatoes

2 or 3 lbs Yukon gold potatoes

butter + more for baking dish

3 tbsp butter + more for baking dish

onion, thinly sliced

1 onion, thinly sliced

salt

2 tsp salt

black pepper

1 tsp black pepper

onion salt

1 tsp onion salt

garlic

4 cloves garlic

all purpose flour

¼ cup all purpose flour

heavy cream

2 cups heavy cream

sprigs thyme

7 sprigs thyme

sour cream

1 cup sour cream

cheddar cheese, grated

1 ½ cups cheddar cheese, grated

gouda, grated

1 ½ cups gouda, grated

Get ingredients with

Step 1

In a large pan add the butter, once melted add in the onions. Cook down for 2-3 minutes.

butter + more for baking dish

3 tbsp butter + more for baking dish

onion, thinly sliced

1 onion, thinly sliced

Step 2

Season with salt and pepper, onion salt and garlic and cook for 5-7 more minutes.

salt

2 tsp salt

black pepper

1 tsp black pepper

onion salt

1 tsp onion salt

garlic

4 cloves garlic

Step 3

Add in the flour and mix/whisk it in. Cook for 1 minute.

all purpose flour

¼ cup all purpose flour

Step 4

Add in the heavy cream whisking in as you go to help incorporate all the onions with the flour into the heavy cream. It'll instantly start thickening up.

heavy cream

2 cups heavy cream

Step 5

Add in the fresh thyme sprigs, 1 cup sour cream and let simmer for about 10 minutes on a low heat.

sprigs thyme

7 sprigs thyme

sour cream

1 cup sour cream

Step 6

Remove the thyme sprigs, and in batches add in the cheddar and gouda until fully melted.

cheddar cheese, grated

1 ½ cups cheddar cheese, grated

gouda, grated

1 ½ cups gouda, grated

Step 7

Thinly slice your potatoes using a mandolin or a very sharp knife. The thinner you can cut them the better.

or 3 lbs Yukon gold potatoes

2 or 3 lbs Yukon gold potatoes

Step 8

Prepare your baking dish, I used a square one, rub it over with softened butter or non-stick cooking spray.

butter + more for baking dish

3 tbsp butter + more for baking dish

Step 9

Layer the bottom of the baking dish with about 1 cup of the cheese sauce, on top of the cheese sauce start layering in the potatoes. Once all the potatoes are in pour over the rest of the cheese sauce.

Step 10

Bake at 350 degrees for 40-60 minutes. If your potatoes are sliced on the thinner side your entire dish will be ready closer to 40 minutes after cooking, if they're thicker it will take closer to the hour if not longer. If the top of your dish is getting too dark you can cover with foil.

Step 11

Once cooked, let rest for 15-20 minutes before serving.

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