What happens when adding flour to mashed potatoes?

In this brief guide, we will answer the question “what happens when adding flour to mashed potatoes?” with an in-depth analysis of the reason which generates the outcomes of adding flour to the mashed potatoes. Moreover, we will also discuss how adding flour to the mashed potatoes affects their taste and texture.

 What happens when adding flour to mashed potatoes?

When you add flour to the mashed potatoes, it will thicken them. Flour is used as a thickening agent. If the mashed potatoes are soft and feel then adding flour helps them attain a thick texture.

Can you put flour in mashed potatoes?

Yes, you can add flour to mashed potatoes. This is the most common, and perhaps the simplest way, to thicken mashed potatoes. You can use what you have on hand: flour, cornstarch, or powdered milk are all solid options that are probably present in every pantry.

How do you thicken homemade mashed potatoes?

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 to reach your desired consistency.

Why do you not put raw flour in mashed potatoes?

Raw flour has a bad taste and texture. Your body also can’t digest raw starches very well. When you cook it, it gelatinizes and takes up water which completely changes the taste and texture and becomes more palatable.

How much flour can you add to the mashed potatoes?

You can add 1 tablespoon of flour to the mashed potatoes.

Apart from this, you can also increase the quantity of the flour depending upon the desired consistency.

Is flour or cornstarch better for thickening?

Because cornstarch is pure starch, it has twice the thickening power of flour, which is only part starch. Thus, twice as much flour is needed to achieve the same thickening as cornstarch. Using flour as a thickener will give the mashed potatoes a bland taste whereas cornstarch won’t affect the taste.

How do you stiffen mashed potatoes?

Cornstarch, flour, tapioca, powdered milk, or a hard cheese like Parmesan are all great ways to get your potatoes a little thicker. Don’t forget to sample your potatoes after adding your thickener so you can add more seasonings if needed

Which flour is best for thickening?

The best flour to use as a thickener is all-purpose flour because it’s higher in starch than other wheat flour. Cornstarch is a pure starch derived from corn. It can withstand a good amount of cooking and stirring before it begins to break down.

What can make mashed potatoes so thick?

When too much starch gets released, the potatoes become gummy, gluey, and unappetizing. Overworking the potatoes can happen in a couple of ways: either by simply handling them too much, or by using a food processor, blender, or similar tool, which mixes the potatoes too aggressively.

How do you keep mashed potatoes from getting gummy?

Throwing in a cold stick of butter and a splash of milk straight from the refrigerator will immediately cool down some of the spuds, which will prevent a creamy, smooth mash. If you take the time to slowly heat milk or heavy cream and butter in a small saucepan on the stove, you’ll have much better results.

How does adding flour to the mashed potatoes affect their taste?

When flour is added to the mashed potatoes as a thickening agent, it does not affect the taste. But adding an excess of flour to the mashed potatoes can mask their original taste by incorporating a bland taste.

How can the taste of flour be masked in mashed potatoes?

  • To add flavor to your flour containing mashed potato, you could add some grated hard cheese such as Parmesan. 
  • To make mashed potatoes creamier, you could add some powdered milk until it reaches the desired consistency. 
  • Always taste the mash to check the flavor and texture to see if the seasoning should be adjusted and if the texture is palatable.

What to do if adding flour to the mashed potatoes makes them lumpy?

Lumpy mashed potatoes generally mean undercooked potatoes or when flour is added to them. If you get to this point and you realize you’ve undercooked your potatoes or added a little too much flour, just add a little bit of milk or cream and cook the potatoes over low heat until the lumps begin to soften.

You can read how to make cream cheese mashed potatoes here.


In this brief guide, we have answered the question “what happens when adding flour to mashed potatoes?” with an in-depth analysis of the reason which generates the outcomes of adding flour to the mashed potatoes. Moreover, we have also discussed how adding flour to the mashed potatoes affects their taste and texture.



Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.