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    Home » Recipes » Sides

    Published: Oct 8, 2022 · Modified: Dec 1, 2022 by Claire · This post may contain affiliate links. As an Amazon associate I earn from qualifying purchases · Leave a Comment

    Celeriac and Sweet Potato Mash

    Jump to Recipe Print Recipe

    This celeriac and sweet potato mash is a cozy comfort food side dish perfect for your Thanksgiving, Christmas and holiday celebrations! Easy to make, with so much flavour from fresh rosemary and garlic.

    celeriac and sweet potato mash in a white dish next to a serving spoon and rosemary.

    Mash is one of those comfort foods that always goes down a storm in my family. Kids and adults alike love this recipe, along with my potato cauliflower mash and cheesy cauliflower mash. I know there will be empty dishes when I serve it!

    Making this celeriac sweet potato mash is very simple, and requires minimal ingredients. It's a flavourful side made on the stove top - saving valuable oven space for holiday celebrations when there are always so many dishes!

    Jump to:
    • ⭐ Why this recipe is so good
    • 🍠 Ingredients
    • 📖 Swaps and variations
    • 🔪 Step by step instructions
    • 💭 Recipe tips and notes
    • 📋 Frequently asked questions
    • 🐓 How to serve celeriac sweet potato mash
    • 🥕 More tasty sides
    • 📖 Recipe
    • 💬 Comments

    ⭐ Why this recipe is so good

    Cozy comfort food with a twist. While regular white potato is so good, this recipe has some different, and very tasty, flavours.

    Healthy. We have fresh vegetables, herbs and garlic for all the good stuff!

    Versatile. Both kid and adult-friendly, and perfect for a Sunday dinner or holiday celebration.

    🍠 Ingredients

    individually labelled ingredients to make celeriac and sweet potato mash including garlic, butter and milk.

    All the ingredients and their quantities are set out in the recipe card below.

    Some notes on a few of them:

    • Celeriac - the ugly vegetable in the store! Be sure to slice off the roots and give it a good peel.
    • Sweet potatoes - personally I peel mine to make mash, but I know some love to keep the skins on!
    • Butter - I've only ever made this with regular butter, but you can use vegan butter if you prefer.

    📖 Swaps and variations

    Swap rosemary for sage. Both work so well in mash. Sage is quite pungent, so you may wish to reduce the quantity a little.

    Choose non-dairy milk of your choice. You can also use regular milk if you prefer.

    🔪 Step by step instructions

    Making this celeriac sweet potato mash is very easy, with all simple steps:

    cubes of celeriac in a pan labelled number one.
    celeriac and sweet potato in a pan labelled number two.

    Step 1

    Cook the celeriac. Add the celeriac and garlic to a large pot and top with water. Bring to a boil, then reduce the heat. Cook for ten minutes (image 1).

    Step 2

    Cook the sweet potatoes. Add the sweet potatoes to the pot and continue to cook for another 10-12 minutes until they are fork tender (image 2).

    celeriac, sweet potato, butter and herbs in a pan labelled number three.
    celeriac and sweet potato mash in a food processor labelled number four.

    Step 3

    Add the flavourings. After draining the vegetables and garlic in a colander, tip back into your pot. Add the butter, milk, rosemary, thyme, salt and black pepper (image 3).

    Step 4

    Mash the mixture. Either use a potato masher to mash in the pot, or transfer to a food processor and blend to a creamy texture (image 4).

    Add more butter or milk to preference, particularly if you like a very creamy mash. Serve immediately.

    💭 Recipe tips and notes

    • Dice the celeriac and sweet potatoes into roughly similar size pieces for an even cook time.
    • Adjust with more rosemary if you like a very 'herby' flavour.
    • If you would like a more savory flavour, you can use vegetable stock rather than water in the pot.
    • While I use non-dairy milk, you can also use regular milk if you prefer.

    📋 Frequently asked questions

    Do you have to peel sweet potatoes to make mash?

    You don't have to peel, and whether or not is down to preference. Personally I like more creamy mash so I peel mine.

    Is it better to use a potato masher or food processor for mash?

    It depends on your 'texture preference' for your mash! Like a few lumps? Then use a potato masher. Prefer a very creamy texture? You would probably find using a food processor easier.

    Can I use other herbs?

    If rosemary isn't your thing, then sage or thyme would also be nice!

    🐓 How to serve celeriac sweet potato mash

    Mash always goes perfectly with comfort food dishes, whether for a weeknight dinner or for holiday celebrations. Some ideas:

    • Enjoy as a side for chicken and turkey dishes such as my creamy paprika chicken, blueberry fennel chicken and turkey with sage cream sauce.
    • Include in a selection of sides for your Thanksgiving, Christmas dinner or holiday celebrations along with ideas such as my honey rosemary roasted vegetables, pesto Brussels sprouts, sweet potato casserole and my healthy cranberry sauce.
    celeriac and sweet potato mash in a white dish with a spoon in next to rosemary and garlic.

    🥕 More tasty sides

    My sides recipe page has so many tasty options, including my quinoa stuffed zucchini boats and my garlic spaghetti squash. Some recent recipes to enjoy:

    • Brussels sprouts on a white plate on a wooden board.
      Air Fryer Frozen Brussels Sprouts
    • sweet potato wedges on a light grey plate next to a small bowl of tahini.
      Air Fryer Sweet Potato Wedges
    • romaine lettuce halves on a white plate on a blue cloth.
      Air Fryer Romaine Lettuce
    • stack of grated potato fritters on a white plate with fresh herbs and glass of water in the background.
      Grated Potato Fritters

    I'm always in the kitchen, so come join me on Instagram, Facebook and Pinterest to be the first to hear of new recipes! And I love to hear from you - so please do leave a star rating or comment below if you have tried the recipe!

    📖 Recipe

    celeriac and sweet potato mash in a white dish with a spoon in next to rosemary and garlic.

    Celeriac and Sweet Potato Mash

    Claire
    This celeriac and sweet potato mash is a cozy comfort food side dish, perfect for weeknight meals or special occasions.
    5 from 3 votes
    Prevent your screen from going dark
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    Prep Time 10 mins
    Cook Time 22 mins
    Total Time 32 mins
    Course Side Dish
    Cuisine American, British
    Servings 6 servings
    Calories 135 kcal

    Equipment

    • Potato masher or food processor
    • Colander

    Ingredients
      

    • 1 pound sweet potatoes peeled, diced
    • 1 celeriac peeled, diced
    • 2 garlic cloves peeled
    • 4 cups water or vegetable stock
    • ½ tablespoon rosemary leaves picked, finely diced
    • 1 teaspoon thyme leaves
    • 1 tablespoon butter
    • ¼ cup non-dairy milk
    • pinch salt
    • pinch black pepper

    Instructions
     

    • Add the celeriac and garlic to a large saucepan and top with water. Bring to a boil, then reduce the heat. Cook for 10 minutes.
    • Tip in the diced sweet potatoes, stir to combine with the celeriac and cover. Cook for a further 12 minutes or until the potatoes are fork tender.
    • Drain the vegetables in a colander and then tip back into the saucepan. Add the butter, non-dairy milk, rosemary, thyme, salt and black pepper.
    • Either use a potato masher to mash in the saucepan or, alternatively, transfer to a food processor to blend. Adjust with more milk or butter to taste preference.

    Notes

    • Dice the celeriac and sweet potatoes into roughly similar sizes for an even cook time.
    • For a more savory flavour you can cook the vegetables in vegetable stock rather than water.
    • Adjust the amount of rosemary and garlic to taste preference.
    • Please note that nutritional information is offered as a courtesy. It is auto-generated and should be understood to be an estimate.
     
    Swiss Interest Group Histamine Intolerance (SIGHI) food compatibility list for histamine
    All ingredients score 0 with the exception of:
    • celeriac, which isn't rated. It is low histamine on other lists.
    • garlic, which scores 1.
    • black pepper, which scores 2.
    • non-dairy milk has variable scores.

    Nutrition

    Calories: 135kcalCarbohydrates: 26gProtein: 3gFat: 3gSaturated Fat: 2gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 1gTrans Fat: 0.1gCholesterol: 6mgSodium: 177mgPotassium: 601mgFiber: 4gSugar: 5gVitamin A: 10805IUVitamin C: 11mgCalcium: 91mgIron: 1mg
    Tried this recipe?Mention @lowhistaminekitchen or tag #lowhistaminekitchen!
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    Hi, I’m Claire. After a diagnosis of MCAS I began to follow a low histamine diet, which has helped me manage my symptoms. Here I hope to show that a restrictive diet can still be full of flavourful meals, and help you enjoy being creative in the kitchen.

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