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    You are in: Home / Recipes / Copycat Costco(R) Deli Mac and Cheese Recipe
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    Copycat Costco(R) Deli Mac and Cheese

    1/1 Photo of Copycat Costco(R) Deli Mac and Cheese

    Total Time:

    Prep Time:

    Cook Time:

    1 hrs

    30 mins

    30 mins

    Chef Smiley7's Note:

    Costco's mac and cheese that they sell in their deli section is so yummy, but they only sell it at a certain time of the year. I wanted to try to figure the recipe out so that when they don't have it, I can still make it myself. This recipe is what I came up with. It is very decadent and NOT low-cal. LOL

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    1. 1
      Cook cavatappi pasta according to package directions so it is al dente, drain, add 1 Tbsp of butter while still hot, and mix through; set aside to cool mostly.
    2. 2
      In a large sauce pan, melt butter into cream over low heat. Add garlic salt and pepper to taste.
    3. 3
      Stir in the pecorino romano and parmesan cheese over medium heat until melted; this will thicken the sauce. Remove from heat and allow to cool mostly.
    4. 4
      Once both noodles and sauce are just slightly warm, stir the sauce into the noodles. Add 3 cups of cheddar cheese and mix.
    5. 5
      Smooth into a 13x9x2 baking dish. Sprinkle top with the remaining cup of cheddar cheese. Bake at 350 degrees F for 30 minutes or until top starts to brown slightly.

    Browse Our Top Macaroni And Cheese Recipes

    Ratings & Reviews:

    • on March 03, 2014


      I didn't think it was just like Costco's actually. I cut the butter in 1/4 (I only used 1/4 cup, 1 cup of butter and 3 cups of cheese seemed a bit much to me). Even with that much less butter, it was so oily and separated. It can't be the same recipe as Costco because theirs is served cold and reheated and doesn't separate the way this does. I didn't love it. Sorry! I wanted to! Costco's mac and cheese is the best!

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    • on April 08, 2013


      Delicious recipe, and just like Costco's Mac & Cheese, though the kids found it a bit more 'oily' so next time we'll try 1/3 less butter -- the cheeses are plenty rich by themselves. Very good Mac & Cheese, and of course you could add cooked chicken or shrimp or lobster if you'd like to make this an entree.<br/><br/>A few notes:<br/><br/>1. We had buttermilk on hand instead of heavy cream, and only about 1/2 as much as the recipe said to use. Followed my wife's suggestion to use equal parts of buttermilk and 2% milk, and it worked great (and probably quite a bit healthier).<br/><br/>2. Costco carries the Pecorino Romano cheese. I got the smallest wedge I could find, 1.35 lbs, and we still only used about 1/4 of that (so 1/4 to 1/3 lb.), so if you don't have a use for additional Romano cheese, might be better to buy this at a regular grocery store in smaller quantity.<br/><br/>3. We used Dubliner cheese instead of Parmesan cheese. Dubliner is very much like Parmesan though it bit more moist of a cheese. You can find it at Costco (about $8 for 3"x3"x8" block) or at Trader Joe's for four times the cost per volume.<br/><br/>4. We used Kirkland's pre-shredded Cheddar Jack cheese instead of the Cheddar Cheese. We keep this on hand for so many recipe's by freezing in quart bags (always tastes fresh when defrosted, couple mins on High in the microwave).<br/><br/>5. For quick work on shredding these cheeses, I suggest you get yourself a restaurant style cheese grater (look on Crate & Barrel like this link,, or any other site), and put your 1 cup measure in a large mixing bowl while grating the cheese so there's none spilled on the counter.<br/><br/>6. The guys at Whole Foods (a high end grocery store) said be sure to use Durum Wheat semolina pasta, apparently it's higher quality & healthier. Although online sites say it may be not as white colored, the kids just confirmed it's the regular color of pasta (and be sure they'll tell me if otherwise!), as you can see in the picture. Also we mixed elbow pasta and cavatappi, so if you do the same, start cooking the cavatappi about 3 minutes before adding the elbow pasta, because the cavatappi takes longer (10 mins) compared to the elbow (5-7 mins).<br/><br/>That's it! Enjoy!

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    Nutritional Facts for Copycat Costco(R) Deli Mac and Cheese

    Serving Size: 1 (155 g)

    Servings Per Recipe: 8

    Amount Per Serving
    % Daily Value
    Calories 836.2
    Calories from Fat 561
    Total Fat 62.3 g
    Saturated Fat 38.9 g
    Cholesterol 190.7 mg
    Sodium 682.0 mg
    Total Carbohydrate 44.8 g
    Dietary Fiber 1.8 g
    Sugars 1.9 g
    Protein 25.0 g

    The following items or measurements are not included:

    pecorino romano cheese

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