Scalloped Potatoes Recipe (2024)

FAQs

How to make scalloped potatoes not runny? ›

To thicken scalloped potatoes, keep cooking the sauce a minute or so longer than directed before adding the cheese. This will create a rich, extra-thick sauce. You can also use whole or 2% milk in place of the fat-free milk. You can try out these sauce thickening tips, too!

But it can be frustrating when the creamy sauce and cheese separate or look curdled. The good news is that the dish tastes just fine, even when it looks a little strange. The curdling is caused by high heat, which is hard to avoid in an oven. So to keep the sauce together, tackle it before the dish goes in the oven.

Potatoes or rice can remain rock-hard after prolonged cooking. Starch will not swell if it is acidic. If you have a lot of sour cream in your scalloped potatoes or add something acidic, your potatoes may not soften. You can cook the potatoes with heavy cream or milk and then, after they soften, stir in sour cream.

You can use what you have on hand: Flour, cornstarch, or powdered milk are all solid options that are probably already in your pantry. Potato flour and potato starch would work as well. Stir in the thickening agent gradually, about a tablespoon at a time, until the potatoes have reached your desired consistency.

Preventing watery scalloped potatoes begins during the preparation stage. First, it's essential to choose the right type of potatoes. Go for starchy varieties, such as russets, rather than waxy types, such as red potatoes. Starchy potatoes are less watery, contributing to a thicker, creamier dish.

The best potatoes to use for a homemade scalloped potato recipes like this one are baking/frying potatoes, either russet or Idaho. They have dry, light, and fluffy interiors that hold their shape when cooked. The starch in the potatoes helps to thicken the sauce while the casserole bakes.

When the dish cools down, however, the starches will contract and congeal into a thick, creamy sauce. If you want the best results, let your potatoes rest for 15 to 20 minutes to allow their internal temperature to come down. Treat them like you would an apple pie, which also needs some cooling time before it's cut.

The most common problems arise when the flour is not whisked in thoroughly into the pan drippings and/or while adding the stock to the roux and/or you adding the liquid too quickly. Any and all of these missteps can produce lumps.

Flour: All-purpose flour helps thicken the sauce as the scalloped potatoes bake. You'll sprinkle flour over each layer of potatoes so the sauce thickens evenly. Butter: A generous amount of butter distributed on each layer of potatoes adds richness.

Can you slice potatoes ahead of time for scalloped potatoes? ›

Instead, the IPC recommends refrigerating the slices in a large bowl of water with a tablespoon of white wine vinegar or lemon juice. Make sure the potatoes are completely submerged and don't store them beyond 24 hours. When you're ready to use them, drain the water and pat the potatoes dry.

Almost always there are two reasons the potatoes turned black... exposure to air or oxygen and black spot bruising.

The difference comes down to cheese. Scalloped potato recipes are usually baked in a basic cream sauce until soft and tender, with no cheese topping. Potatoes au gratin are a bit more decadent. They are made with lots of cheese sprinkled in between the layers of potatoes and also on top of the casserole.

When the dish cools down, however, the starches will contract and congeal into a thick, creamy sauce. If you want the best results, let your potatoes rest for 15 to 20 minutes to allow their internal temperature to come down. Treat them like you would an apple pie, which also needs some cooling time before it's cut.

The potatoes might have been harvested in heat and started perspiring, just like a human might, as it is still a living organism. If trapped in a bag or box then the moisture can cause the potatoes to be wet or sealed up with no ventilation and could actually mold if left that way too long.

Whisk together equal parts cornstarch and cold water in a small bowl. Use one tablespoon of cornstarch per cup of liquid you would like to thicken. Stir out all the lumps. A few minutes before your casserole is done, add it a little at a time until you are happy with the thickness.

You either boiled them for too long, which resulted in them absorbing too much water, or (not knowing what techniques/ingredients you may have used) you may have added too much milk/cream.