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    Home » Side Dishes » Potatoes

    Crispy Parmesan Potatoes with Onions and Garlic

    Published: Oct 19, 2015 · Modified: Apr 14, 2020 by Mamma C · This post may contain affiliate links

    Jump to Recipe

    Crispy Parmesan Potatoes with Onions and Garlic will become a family favorite! I've been making these for decades!

    Crispy Parmesan Potatoes with Onions and Garlic Butter in a pan

    I've been making these crispy Parmesan potatoes with onions and garlic for 22 years. In fact, now that I think about it, this much-loved recipe has been part of my household longer than any others on Cooking with Mamma C.

    How's that for an endorsement?

    Like this Coq au Vin and my New England Clam Chowder with Bacon, I picked this up from my Better Homes and Gardens New Cook Book, which has served as my go-to resource for how to make anything during my married life. Granted, I often rely on blogs nowadays, but hey, in the Dark Ages, cookbooks (with barely any photos!) were the bee's knees.

    slice of Crispy Parmesan Potatoes with Onions and Garlic Butter on a plate with forkI really haven't changed this recipe much at all. I've always doubled the original version (except for the onions) and made three layers of potatoes, because this is one of those dishes that compels everyone to ask for seconds.

    I've learned that russet potatoes will turn out mealy here, so I always use redskins.

    For years, I used my food processor to slice up my spuds almost ¼-inch thick, but now that I have a mandoline (affiliate link), I used it to make thinner ⅛-inch-thick slices. Whatever you use, try to stay within that range.

    close-up of a pan of Crispy Parmesan Potatoes with Onions and Garlic Butter

    This side dish is not quick enough for a weeknight meal, but I've served these potatoes on countless weekends and for small dinner gatherings. Mom will tell you they're her favorite!

    With the crispy Parmesan layer, the onions that turn sweet from roasting, and that delicious garlic butter, what's not to love?

    Other potatoes you might like

    • Oven-roasted potatoes
    • Italian potato salad with green beans
    • Old-fashioned scalloped potatoes
    • Deviled egg potato salad
    • Mashed potatoes with brown butter

    And don't miss this collection of Italian Side Dishes (Contorni)!

    Enjoy!

    (Recipe Source: Slightly adapted from Better Homes and Gardens New Cook Book, (affiliate link) 1989, page 404.)

    overhead view of Crispy Parmesan Potatoes with Onions and Garlic Butter in a glass pan

    Crispy Parmesan Potatoes with Onions and Garlic

    A family favorite for more than two decades!
    4.67 from 6 votes
    Print Pin Rate Save Go to Collections
    Course: Side Dish
    Cuisine: Italian
    Prep Time: 35 minutes
    Cook Time: 30 minutes
    Total Time: 1 hour 5 minutes
    Servings: 8
    Calories: 187kcal
    Author: Mamma C

    Ingredients

    • 2 pounds red potatoes (6 medium; peeled and sliced ⅛-inch thick)
    • 1 small white, yellow, or red onion (sliced thinly into rings)
    • ½ cup freshly grated Parmesan cheese
    • ¼ teaspoon garlic powder
    • ¼ teaspoon black pepper
    • 6 tablespoons salted butter (melted)
    • salt to taste (for serving)
    US Customary - Metric

    Instructions

    • Preheat your oven to 450 degrees F. Grease a 15x10-inch baking pan (see notes for a half-sheet pan) with butter. Rinse and peel your potatoes. Slice them thinly (⅛ -inch to ¼-inch thick), using a food processor, mandoline, or the slicer on a box grater.
    • Cut off the root and stem ends of your onion and peel it. Cut it into thin rings by starting at one end and slicing downward. Continue slicing the rest of the onion into rings. Separate the rings and set them aside.
    • In a small bowl, combine the Parmesan, garlic powder and pepper. Melt your butter in a small pan on the stove or in a small bowl in the microwave.
    • To assemble, place some potatoes in a single layer, slightly overlapping, in your baking pan. Sprinkle on a third of your Parmesan mixture evenly. Add some onions on top in a single layer. Repeat with another layer of potatoes, the Parmesan mixture, and onions. For your third layer, add the potatoes, Parmesan mixture, onions, and drizzle your melted butter all over the top.
    • Bake uncovered for 30-35 minutes, until the top layer is browned and crispy.
    • Serve with salt at the table, for anyone who wants to add it.
    • Store leftovers in the refrigerator for up to five days.

    Notes

    If using a 13 x 18 half-sheet baking pan, you will probably need 8 or 9 medium potatoes to make three layers. Use a medium onion and 1.5 times the Parmesan mixture and butter.
    Slightly adapted from Better Homes and Gardens New Cook Book.

    Nutrition

    Calories: 187kcal | Carbohydrates: 19g | Protein: 4g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 28mg | Sodium: 191mg | Potassium: 543mg | Fiber: 2g | Sugar: 2g | Vitamin A: 325IU | Vitamin C: 10.8mg | Calcium: 86mg | Iron: 0.9mg
    Tried this Recipe? Mention @cookingwithmammac or tag #CookingWithMammaC!
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    Reader Interactions

    Comments

    1. Denise | Sweet Peas & Saffron

      October 23, 2015 at 5:56 pm

      How did you know that I just bought a mandoline and am itching to use it? Ha ha, these look SO good! I need to try them!

      Reply
      • Mamma C

        October 23, 2015 at 6:27 pm

        I really love how the mandoline can make thin slices. It's perfect for these potatoes. I hope you give this a try, Denise!

        Reply
        • Cheryl "Cheffie Cooks" Wiser

          November 02, 2015 at 10:12 pm

          Working on this post. Cheryl not prior new one!

          Reply
    2. Cheryl "Cheffie Cooks" Wiser

      October 22, 2015 at 11:37 pm

      Hi Andrea, glad site back up running!!! Woo Hoo- love potatoes...I just love food! Your Florida Bud, Cheryl

      Reply
      • Mamma C

        October 23, 2015 at 7:20 am

        Me too! 🙂

        Reply
      • Cindi West

        July 03, 2020 at 2:17 pm

        This looks delicious. I'm getting ready to make these and I got the little petite red potatoes. Do I have to peel them?

        Reply
        • Mamma C

          July 03, 2020 at 2:37 pm

          Hi Cindi - You should be able to leave the skin on. Enjoy.

          Reply
    3. Maureen | Orgasmic Chef

      October 19, 2015 at 11:08 pm

      5 stars
      I love potatoes and I swear I could live on a dish like this. These wonderfully crispy potato slices with their cuddly onions would make my day.

      Reply
      • Mamma C

        October 20, 2015 at 7:24 am

        I love how you phrased that, Maureen! Cuddly onions...yes! I'd be happy to eat this for my whole meal. 🙂

        Reply
    4. Angie

      October 19, 2015 at 5:08 pm

      I know I would like this one!! Mmmmm

      Reply
      • Mamma C

        October 19, 2015 at 5:13 pm

        This one's so good, even the aroma from warming up leftovers in my microwave is intoxicating. 🙂

        Reply
    5. [email protected]

      October 19, 2015 at 11:21 am

      5 stars
      There is everything to love here! My mom makes a dish very similar and it's always been one of my favorites! I want to dive straight into that dish! Pinned!

      Reply
      • Mamma C

        October 19, 2015 at 11:40 am

        I know how much you love potatoes, Annie! I hope you enjoy these. Thanks!

        Reply

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    I'm Andrea, also known as Mamma C. I share family-tested recipes from my Italian-American kitchen. I hope you'll visit often! Read More…

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