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    You are in: Home / Recipes / Caramelized Onion and Coarse-Grain Mustard Mashed Potatoes Recipe
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    Caramelized Onion and Coarse-Grain Mustard Mashed Potatoes

    Caramelized Onion and Coarse-Grain Mustard Mashed Potatoes. Photo by I'mPat

    1/1 Photo of Caramelized Onion and Coarse-Grain Mustard Mashed Potatoes

    Total Time:

    Prep Time:

    Cook Time:

    40 mins

    15 mins

    25 mins

    Sonata's Note:

    From the Trenton Times: Caramelized onions practically melt into the warm potatoes, and coarse-grain mustard adds a pretty golden-flecked hue and subtle flavor. Cook time does not include time to make caramelized onions. I have made this using a combination of red potatoes and red gold potatoes and I don't bother to peel them. I also prefer to caramelize the onions in the crockpot on high for 3-4 hours.

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    Units: US | Metric


    1. 1
      Boil potatoes in a large saucepan over medium heat in salted water to cover for 15 to 20 minutes, or until tender.
    2. 2
      Drain water. Return to pan to heat for 1 to 2 minutes, shaking occasionally to dry out any remaining water.
    3. 3
      Add the half-and-half and butter, and heat over medium heat just until the milk starts to simmer.
    4. 4
      Remove from heat. Add the mustard and onions and mash to desired consistency. Taste and add more mustard if necessary.
    5. 5
      Add salt and pepper to taste. Serve hot.
    6. 6
      Note: To caramelize onions, heat 1 Tbsp olive oil in a heavy-based skillet. Add 1 thinly sliced medium yellow onion. Cook and stir over medium heat for 5 minutes until onion starts to soften. Lower heat and sprinkle with 1/4 tsp salt and a pinch of granulated sugar. Cook 20 minutes or until deep golden brown, stirring frequently. Lower heat if necessary to keep onions from burning. These freeze beautifully, so you can make extra to freeze for later use.

    Ratings & Reviews:

    • on May 15, 2013


      Loved it, scaled back for 3 serves and they were big but all eaten up and I did put a lot more caramelized onion into the mix (nearly 1 cup of caramelized onion and 2 teaspoons of Dijon grain mustard) and used Carisma potatoes which are low GI. Thank you Sonata, made for Name tat Ingredient tag game.

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    • on May 01, 2007

      I made this tonight and to be honest I have very mixed feelings about it. I found the ingredients intriguingly different and I rather thought that this would be a recipe that you love or hate. I don't love or hate it. The mustard really removes it from the mashed potato that one expects..but thats why I tried it. I think I would have liked the potato's much more with the caramelized onions or the mustard than I did with both. I think this is worth trying for those who enjoy something a bit off the beaten path and I'm sure that there are those you will fall madly in love with this. Perhaps some more milk and butter would have helped as that were pretty dry (I used Russets). The onion and mustard flavors were quite mild I should add.

      people found this review Helpful. Was this review helpful to you? Yes | No


    Nutritional Facts for Caramelized Onion and Coarse-Grain Mustard Mashed Potatoes

    Serving Size: 1 (176 g)

    Servings Per Recipe: 6

    Amount Per Serving
    % Daily Value
    Calories 170.5
    Calories from Fat 49
    Total Fat 5.5 g
    Saturated Fat 3.4 g
    Cholesterol 15.1 mg
    Sodium 48.6 mg
    Total Carbohydrate 27.6 g
    Dietary Fiber 3.4 g
    Sugars 1.4 g
    Protein 3.5 g

    The following items or measurements are not included:

    coarse grain mustard

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