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Why is my cauliflower mash watery?

Quick Answer

There are a few common reasons why cauliflower mash can turn out watery:

  • Not drying the cauliflower properly before mashing
  • Over-processing the cauliflower when mashing
  • Adding too much liquid like milk or cream when making the mash
  • Not allowing the cauliflower to cool before mashing

To fix watery cauliflower mash, be sure to squeeze out as much moisture as possible from the cooked cauliflower before mashing. Mash the cauliflower coarsely and avoid over-mixing. Add liquid gradually and taste as you go. Let the cauliflower cool slightly before mashing so excess moisture can evaporate.

What Causes Watery Cauliflower Mash?

Cauliflower is a water-rich vegetable – it’s nearly 92% water when raw. All that moisture can easily make cauliflower mash turn out too thin and watery if not handled properly when cooking. Here are some of the top reasons why cauliflower mash can end up watery:

Not Drying the Cauliflower

One of the biggest reasons behind watery cauliflower mash is not properly drying the cauliflower after cooking and before mashing. If the just-cooked hot cauliflower is immediately placed into a food processor or mashed by hand, all that excess water will incorporate into the mash, creating a thin, watery texture.

It’s crucial to let the cooked cauliflower drain in a colander for at least 15 minutes after cooking. Gently pressing out moisture with a paper towel or clean dishcloth will remove even more excess liquid. Starting with drier cauliflower means less water diluting the mash.


It’s easy to over-process cauliflower when making mashed cauliflower, whether mashing by hand or using a food processor. Too much mashing or mixing can destroy the cell structure of the cauliflower, releasing more moisture and making it watery.

For the best texture, you want to break cauliflower florets down into small crumbles and pieces, but not completely puree them into a smooth mash. Mash just until the desired consistency is reached. Over-mixing will make the mash thin and watery.

Adding Too Much Liquid

Liquid is often added to cauliflower mash to help achieve a creamy texture, usually in the form of milk, cream, broth, or other cooking water. However, it’s easy to add too much, which can quickly make the mash too thin.

Start by adding liquid sparingly, a tablespoon at a time. Mix well and taste as you go, adding more as needed. Buttermilk, cream cheese, sour cream, and cheese can also be used in moderation to help create creaminess without thinning out the mash.

Not Cooling the Cauliflower

Mashing hot just-cooked cauliflower can lead to a watery texture. At high temperatures, the cell structure of the cauliflower is more fragile and prone to breaking down and releasing moisture during mashing.

Allowing the cauliflower to cool down slightly after cooking enables moisture to evaporate. The cauliflower will be firmer and dryer, resulting in a thicker, less watery mash.

Try mashing the cauliflower once it has cooled for 10-15 minutes out of the cooking water or steamer. The higher volume of steam should be allowed to escape before mashing.

How to Prevent Watery Cauliflower Mash

With a few simple techniques, you can help prevent a watery cauliflower mash texture:

Squeeze Out Moisture from the Cauliflower

This is one of the most important steps. After cooking the cauliflower, transfer it immediately to a colander and allow the steam to escape and excess water to drain for 15-20 minutes. Gently press out as much additional moisture as possible using a towel or paper towels before mashing. Starting with drier cauliflower means a less watery mash.

Don’t Over-Mix the Cauliflower

Avoid over-processing the cauliflower when mashing, either by hand or with a food processor. This releases moisture and can quickly make the mash thin. Mash just long enough to break cauliflower into crumbles and small pieces. Stop when the desired texture is reached.

Add Liquid Gradually

When adding liquid to the mash for creaminess, go slowly and taste frequently. Start with just 1-2 tablespoons liquid and mix thoroughly before adding more. Too much liquid at once can make the mash watery.

Allow the Cauliflower to Cool Slightly before Mashing

Let the cooked cauliflower cool for 10-15 minutes before mashing so excess steam can escape. Mashing hot cauliflower straight from cooking will incorporate more moisture into the mash.

Use Starch for Absorption

Mixing in small amounts of starch like potato flakes, cornstarch, arrowroot, or tapioca can help absorb excess moisture in the mash. Start with 1-2 teaspoons and add more if needed.

Cook the Cauliflower Thoroughly

Undercooked cauliflower holds more moisture. Make sure to cook the cauliflower until very soft all the way through before mashing. This allows more moisture to evaporate during cooking.

Tips for Drier Cauliflower Mash

Here are some additional helpful tips for achieving a thick, creamy cauliflower mash, not a watery one:

  • Use freshly washed paper towels or a clean dish towel to soak up as much moisture as possible from the cooked cauliflower before mashing.
  • Avoid stacking the cauliflower florets when cooking – spread them out in an even layer so steam can escape.
  • Remove any excess water or moisture that accumulates under the steamer basket or colander after cooking.
  • Try roasting instead of steaming or boiling the cauliflower – roasting evaporates more moisture.
  • Reduce the amount of milk, broth, or other liquids added to the mash.
  • Mix in ricotta, cream cheese, sour cream, or cheese for creaminess instead of adding extra liquid.
  • If the mash seems too wet, stir in an extra spoon or two of potato flakes or cornstarch to absorb moisture.

Taking a little extra care when preparing the cauliflower and mashing will help prevent a thin, soggy mash texture. With the right techniques, you can achieve light and creamy cauliflower mash perfection.

What to Do If Your Cauliflower Mash is Already Watery

Uh oh, your cauliflower mash is already thin and watery! Don’t worry, there are a few fixes you can try to salvage it:

Drain the Liquid

If there is excess liquid in the mash, drain it out by transferring the mash to a fine mesh strainer and letting the liquid escape. Gently press the mash to remove more water.

Spread on a Baking Sheet

Spread the watery mash on a rimmed baking sheet in an even layer. Place in oven at lowest setting (200-250°F) for 10-15 minutes to allow moisture to evaporate.

Simmer in a Pan

Place mash in a non-stick skillet over medium heat. Cook, stirring frequently, for 3-5 minutes to evaporate liquid.

Add Starch

Sprinkle 1-2 tablespoons potato flakes, cornstarch, or arrowroot over the mash and stir vigorously to incorporate. This will help absorb some of the excess moisture.

Mix in Ricotta or Cream Cheese

Stir in a few spoonfuls of part-skim ricotta or cream cheese to add body and texture to the thin mash. The cheese absorbs liquid.

Add More Cauliflower

If needed, stir in some additional cooked and squeezed dry cauliflower to balance out the watery mash.

With a little creativity, you can redeem even the thinnest, wateriest cauliflower mash!

Frequently Asked Questions

Why did my cauliflower mash turn out runny?

The most common reasons for a runny cauliflower mash are not drying the cauliflower properly after cooking, over-mixing during mashing, adding too much liquid, or not allowing it to cool before mashing.

Can I save watery cauliflower mash?

Yes, watery cauliflower mash can be saved by draining excess liquid, cooking over low heat to evaporate moisture, mixing in starch or cheese to absorb liquid, or adding more cooked cauliflower.

Should you rice cauliflower before or after cooking?

It’s best to rice or chop cauliflower into small florets before cooking. This speeds up cooking time and allows more moisture to evaporate. Ricing hot just-cooked cauliflower will lead to a mushier, watery texture.

Is it better to roast or steam cauliflower for mash?

Roasting is preferred for cauliflower mash, as it drives off more moisture during cooking, leading to a drier mash. Steaming tends to better retain moisture. Make sure roasted cauliflower is cooled and dried thoroughly before mashing.

Can I use potato in cauliflower mash for texture?

Yes, adding some starchy potato to the cauliflower mash helps absorb moisture and improves the texture. Use 1 part potato for every 3 parts cauliflower. Cook and dry the potato and cauliflower separately before mixing together.


To summarize, watery cauliflower mash most often results from not properly drying the cooked cauliflower, over-mixing during mashing, adding too much liquid, or not allowing it to cool before mashing. Squeezing out as much moisture as possible from the cooked cauliflower, mashing coarsely, adding liquid gradually, and letting it cool before mashing will help prevent a watery texture. Even if your mash turns out thin, you can salvage it by draining, cooking down, mixing in starch or cheese, or adding more cauliflower. With the proper techniques, you can make smooth, creamy cauliflower mash without the wateriness.