Never fret over a batch that “ruined” mashed potatoes again. Here’s everything you have to know about thickening runny potatoes:

There are rather a couple of reasons her mashed potatoes room watery. If you’re staring down at a bowl of white liquid and also wondering what go wrong, ask yourself these questions:

Did I use soggy potatoes? It’s vital to drain and also dry your potatoes fine after you’ve cooked castle in water. If friend don’t, all that excess humidity will have actually nowhere come go once you start mashing. Did I usage too much liquid? This is an obvious issue. Make sure to read your cooking recipes well and use the appropriate ratio that milk or cream to potatoes.


This is the most common, and perhaps the easiest way, to thicken mashed potatoes. You deserve to use what you have on hand: Flour, cornstarch, or powdered milk room all solid alternatives that space probably already in your pantry.

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For what it’s worth, we recommend sticking with cornstarch—it has twice the thickening strength of flour and it’s safe for gluten-free diets.

Stir in the thickening agent gradually, around a tablespoon in ~ a time, till the potatoes have actually reached your preferred consistency.



You can likewise thicken her mashed potato by proceeding to chef them ~ above the stove. Warm draws the overabundance moisture out of runny potatoes, leaving you v a denser perfect product.

This is a risky move, though, as overdone mashed potatoes room gummy and also unpleasant. Make certain to save a nearby eye on them if this is the technique you choose.

As they cook, line every so frequently so they don’t stick come the bottom the the pot. However don’t stir also much! Overworking is another method to destroy the potatoes’ texture.

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If your cooktop is full, you can use the stove to achieve the exact same thing. Simply place the potato in an uncovered, oven-safe casserole dish and heat them for about 10 minute at 325 degrees.


Last yet certainly not the very least is this guideline from Dr. Potato at (we literally can not think of who with an ext authority top top this subject): an “easy deal with for watery potato is to an outbreak the immediate dehydrated potatoes and also mix castle in a tablespoon in ~ a time, into the wet potatoes. This commonly will thicken lock up.” That’s right—you can thicken potatoes with potatoes!