Yes, you can. The problem is that the potatoes start absorbing water, and you end up with a really runny mash that's difficult to flavor (as most people flavor their mash by the addition of flavorful liquids). update : There's a few things that you can do to hold them.
If you find your mashed potatoes are soupier than normal, it's likely because you overcooked them, Buzzfeed says. Overcooked potatoes aren't always dry and hard, as it's possible to overboil a potato too. When you do so, more water is absorbed by the potato.
When too much starch gets released, the potatoes become gummy, gluey, and unappetizing. Overworking the potatoes can happen in a couple ways: either by simply handling them too much, or by using a food processor, blender, or similar tool, which mixes the potatoes too aggressively.
The problem with overcooked potatoes is that they absorb a ton of water. When you go to mash them, they'll be soupy and sad. One way to fix them is by placing them in a pot over low heat and gently cooking them. The excess water will turn into steam, and your mash will dry out.
The Mistake: Overworking the Potatoes with a Food Processor, Blender or Mixer. Too much — or too vigorous — mashing will produce gluey potatoes. Your best tool is an old-fashioned masher, fork, ricer or food mill.
Here's how to do it: For every pound of potatoes in your mash, drizzle 1 tablespoon of melted butter over the dish and fold it gently into the potatoes. If the mash is still too gluey for your liking, repeat the process with another tablespoon of butter.
Fix them: Scoop the watery mashed potatoes into a pan and stir constantly over low heat to evaporate the excess liquid. If the potatoes are really watery, you can add either cornstarch or instant mashed potatoes a half teaspoon at a time to help the spuds thicken to your preferred consistency.
Bake in a Shallow Dish – This method works similarly to heating the runny potatoes in a pot. By baking them, uncovered, in a shallow baking dish, we encourage moisture to evaporate out of the potatoes. To do this, transfer your mashed potatoes to a baking dish and place them in a 350° Fahrenheit oven.
Once there is too much starch in your mashed potato mixture, the texture will quickly turn from fluffy to gummy. Instead of using an electric hand mixer, food processor, or blender — all of which will overwork the potatoes — use a ricer, food mill, or hand masher to gently break down the spuds, per The Spruce Eats.
Health experts have warned that overcooking foods such as toast, roast potatoes, chips and vegetables can lead to cancer. The Food Standards Agency says that starchy foods cooked at high temperatures for too long form acrylamide - a compound thought to be carcinogenic.
Tip #4: Never try to mash up cold potatoes. It has to do with some chemical-y thing with the starch. If your potatoes go cold, heat them up again (in warm water, a microwave) and then try to mash them.
Let them sit for three to five minutes, then mash. If you like your potatoes chunky, Foster advises using a masher (for more lumps, use the wavy-lined style masher; for fewer lumps, choose a grid-shaped one). For smooth potatoes with a whipped texture, use a hand mixer, which incorporates air into the dish.
Here's what not to do: Don't boil your potatoes ahead and wait to mash them, even for half an hour, and don't hold mashed potatoes in a slow cooker. Both result in a mash so gluey that even a paste-eating kindergartener wouldn't touch them.
Potatoes can be peeled prepped and cut into water up to 2 days before boiling for mash.
The yolk emulsifies water and fat to create a cohesive, velvety bite, while providing a little fat and body of its own. What is this? You can add an egg yolk to nearly any existing mashed potato recipe.
"The less water you use to cover the potatoes, the more starch in the water." That starch gives finished mashed potatoes a sticky, grainy texture. Water sabotages potatoes in another way, Ivady warns. When boiled potatoes are not fully drained, resulting mashed potatoes are loose and bland.
Mashed potatoes, like other starchy dishes that are made with dairy (think: creamy casseroles, macaroni and cheese, scalloped potatoes), can develop a dry, gluey texture when reheated for too long, or at a temperature that's too high.
If kept warm, gently mash in heavy cream until smooth and loose again, adding more if you'd like. If cold, heat the cream in a large pot until steaming, then add the potatoes. Gently mash and whip, adding more cream as needed, until heated through and fluffy.
Fix them: Scoop the watery mashed potatoes into a pan and stir constantly over low heat to evaporate the excess liquid. If the potatoes are really watery, you can add either cornstarch or instant mashed potatoes a half teaspoon at a time to help the spuds thicken to your preferred consistency.
To thicken mashed potatoes, you can add a thickening agent like cornstarch, flour, powdered milk, or tapioca. Add one tablespoon at a time until you reach your desired consistency. You can also add heat, more potatoes, or even strain the mashed potatoes in order to reach your desired consistency.
Overcooked or insufficiently drained potatoes can become sticky, as can the wrong kind of potato. But the main problem is overworked spuds. The science is simple: Boiled potatoes develop swollen starch cells. When ruptured during mashing, the cells release starch.
We consider Yukon Gold potatoes the best choice for classic dense mashed potatoes. Their rich texture and subtle creaminess make them great for all of your mashing needs. A true all-purpose potato, they're also good for shredding, roasting, grilling, blending (?!), and shingling.