I love this spicy horseradish macaroni salad for it’s creamy noodles, the punchy pickled veggie addition, and the fresh herbs. For me, this spicy macaroni salad is the perfect side dish for every gathering, whether it’s a grilling session or a potluck celebration.

Horseradish Macaroni Salad
Let’s discuss horseradish, because it’s one of my favorite ingredients.
When horseradish overwhelms a dish, I tend to not enjoy the overpowering result. Luckily, this macaroni salad is not like that, with the horseradish coming through as more of a warming, background flavor. I know it’s there, but it doesn’t take over.
This horseradish macaroni salad has so many flavors to celebrate. I’m actually obsessed with the way it turned out. The fresh oregano also plays a dominant role in making every bite pop!
Why I Love This Recipe
- I appreciate how customizable this recipe is. I can easily tweak it by adding different vegetables or adjusting the amount of horseradish to suit my taste or my guests’ preferences. The measurements are basically a suggestion.
- I love that the flavors meld and improve even more the next day, making leftovers something I actually look forward to.
- Even with my busy schedule, I can whip it up quickly!

Ingredients
The ingredients found in this salad work together and complement each other in all the best ways.
Mayonnaise: I stick with the full-fat version for a full-bodied salad because it gives the dish a rich, creamy texture that I love.
Prepared horseradish: I use prepared horseradish, made with grated horseradish root, vinegar, and salt, because it offers a unique flavor profile that fresh horseradish alone can’t achieve.
Sour cream: I prefer the full-fat version for the best mouthfeel; it makes the salad incredibly smooth and satisfying.
Shredded Parmesan cheese: I often shred my own Parmesan, but buying it pre-shredded saves time and still adds a great umami kick to the salad.
Pepperoncini and it’s juice: This pickled condiment is a game-changer; its tanginess and slight heat elevate the overall flavor of the salad.
Fresh lemon juice: The fresh lemon juice is a flavor booster; it brightens up the salad and adds a refreshing zing.
Fresh oregano: I insist on using fresh oregano because it adds a depth of flavor that dried oregano just can’t match.
Black pepper: A few cracks of black pepper add just the right amount of spice and complexity to the dish.
Red pepper flakes: Adds the perfect heat.
Elbow macaroni: I usually go with elbow macaroni, but sometimes I mix it up with different pasta shapes for variety.
Hard-boiled eggs: I include hard-boiled eggs for extra protein and texture, but it’s easy to leave them out if I’m catering to different tastes.
Frozen peas: Adding frozen peas gives the salad a pop of color and a sweet, crisp texture that I really enjoy.

How To Make Spicy Horseradish Macaroni Salad
Find the complete recipe with measurements in the recipe card at the bottom of the post.
- Step One: In a large bowl, I combine mayo, horseradish, sour cream, Parmesan, pepperoncini, pepperoncini juice, lemon juice, oregano, black pepper, and red pepper flakes. I like to make this part a day ahead because it allows the flavors to meld together. I don’t worry if the consistency seems thin, as I know the pasta will soak it all up.
- Step Two: I add the cooked pasta, eggs, and peas to the mayo-horseradish mixture and combine everything well. Then, I place it in the refrigerator for at least four hours before serving to let the flavors meld together perfectly.

Recipe Tips
Here are a few ways I avoid the stumbling blocks of flavorless macaroni salad and consistently make one that explodes with flavor.
- Don’t forget to season the pasta water…generously. All good pasta salads begin with seasoned water and this macaroni salad is no different. I make sure to add the salt before adding the pasta to the water.
- Adding a pickled veggie. In the case of this salad it’s pepperoncini and it’s bottled juice. I have found this adds a vibrant crunch and taste to this creamy salad.
- I don’t rely on just mayonnaise for creaminess. For the most flavorful dressing I integrate mayo and sour cream, it adds the best mouthfeel.
Make-Ahead Tips
When I plan to make my spicy macaroni salad a day or two in advance, I follow a few steps to maintain its creaminess.
- While I cook the elbow macaroni, I whisk together the full recipe of the creamy dressing.
- I immediately shock the cooked noodles in an ice bath to cool them off, then toss them with three tablespoons of the dressing and refrigerate until ready to serve.
- I know the oil from the mayonnaise will prevent the noodles from sticking together, and keeping most of the dressing separate ensures the noodles won’t soak it all up, leaving the salad dry.
- I often slice the pepperoncini, herbs, and cheese in advance and store them separately in the refrigerator.
- When it’s time to serve, I toss the macaroni noodles with the remaining dressing and stir in the other ingredients.

Leftovers and Storage
- I always make sure to store any leftover spicy macaroni salad in an airtight container in the refrigerator.
- When I have leftovers, I find that the flavors continue to meld and taste even better the next day.
- If the salad seems a bit dry after being refrigerated, I stir in a little extra mayonnaise or sour cream to restore its creaminess.
- I love having leftovers for a quick and delicious lunch or dinner the following day.
- Sometimes, I add a fresh squeeze of lemon juice or some extra herbs to brighten up the salad before serving it again.

MORE PASTA SALAD RECIPES
Let the season of family grilling events, cookouts, and poolside parties with friends give you a reason or two try out one of these favorite pasta salad recipes.
- Italian Pasta Salad
- Antipasto Pasta Salad
- Sweet Potato Pasta Salad
- Greek Pasta Salad
- Bacon Ranch Tortellini Salad
- Rainbow Macaroni Salad
- Chicken Pesto Pasta Salad
- Pepperoni Pasta Salad
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Spicy Horseradish Macaroni Salad
Ingredients
- 3/4 cup mayonnaise
- 1/4 cup prepared horseradish
- 1/4 cup sour cream
- 1/2 cup shredded Parmesan cheese
- 1/3 cup finely chopped pepperoncini (or use the already sliced version)
- 1/3 cup pepperoncini juice (from the jar)
- 1 tbsp fresh lemon juice
- 2 tbsps fresh oregano, minced
- 1/2 tsp red pepper flakes
- 1 lb elbow macaroni cooked al dente and cooled
- 4 hard-boiled eggs, chopped
- 1/2 cup frozen peas ,thawed
Instructions
- In a large bowl combine mayonnaise, horseradish, sour cream, Parmesan, pepperoncini, pepperoncini juice, lemon juice, oregano, black pepper and red pepper flakes. (You can easily make this part a day ahead. Don't worry if the consistency is thin, the pasta will soak it all up.)3/4 cup mayonnaise, 1/4 cup prepared horseradish, 1/4 cup sour cream, 1/2 cup shredded Parmesan cheese, 1/3 cup finely chopped pepperoncini (or use the already sliced version), 1/3 cup pepperoncini juice (from the jar) , 1 tbsp fresh lemon juice, 2 tbsps fresh oregano, minced, 1/2 tsp red pepper flakes
- Add cooked pasta, eggs and peas to the mayo-horseradish mixture; combine well. Place in the refrigerator for at least four hours before serving.1 lb elbow macaroni, 4 hard-boiled eggs, chopped, 1/2 cup frozen peas
Video
Notes
Nutrition
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Shell says
Made it this past weekend and it was absolutely fabulous!
Lea Ann (Cooking on The Ranch) says
I grew up loving horseradish because my father loved it. He’d put it on about anything. I remember when I grew up and moved away from home, I planted horseradish so I could make it for him. And, I just bought a jar of pepperoncini so I made it and it was absolutely amazing.
Cathy says
Love that!
ashley says
I love macaroni salad! And this spicy horseradish version was so good. It was devoured by my whole family.
Cathy says
Thanks Ashley!
Susan says
This was a completely new approach to the classic pasta salad and I have to say it is my new favorite. So much flavor.
Cathy says
I’m waiting with my sunglasses on!
Linda Dalton says
In New England we are waiting for summer. Tonight we have flood warnings through tomorrow evening. So to pass the time I made the salad and oh my it was so surisngly good, but all your recipes are always so wonderful.
Joanna says
I just made this, with one slight omission–don’t berate me–but I cannot STAND pepperoncini. It is still fantastic! Can’t wait until we eat this with our sloppy joe’s tonight.
Cathy says
That’s funny. Glad you enjoyed it. It was good without the peperoncini but it also makes it pop! Have a great evening!
Karly says
Ooh, Cathy, I loved this!! I usually keep my macaroni salad very simple and maybe even a little boring, but this was so much better.
Lisa Evanoff says
This went over so well with the family…and my husband has never even liked typical macaroni salad
Cathy says
Awesome!!
Karlene says
Hi
Could you please tell me what pepperoncini is?
we have pepperoni but the other I have no idea what it is. I live in Australia but spent 3 years in Texas a while ago and find it so frustrating when I can’t get ingredients that I used to use there.
Regards
Karlene
Cathy says
Known as golden Greek peppers, Tuscan peppers, or sweet Italian peppers, pepperoncini (also “peperoncini”) is a variety of chili pepper.They have thin skin that is yellow to light green in color and are only 2-3 inches long they are most often served pickled.
SLG says
Just had my first bite and it’s great!
I’ve never been a huge fan of pasta salad, but I love these ingredients so I had them all on-hand. I made it and now I’m a fan of this pasta salad. Thanks for sharing!
AOK says
Made this over the weekend and I am a bit on the fence about it. I like spicy but actually had to add some additional ingredients to tone it down. It needed more mayo when I went to serve because it was very dry (definitely the pasta soaks up a lot of the liquid from when you first mix). This was a good thing since I needed to lighten it up. Probably added at least a 1/2 c more mayo. Then added a couple more chopped eggs, about a cup of shredded white cheddar, some pickle juice, and 4 oz of chopped blocked olives. If I had more peas it needed more of those too. But it still was quite spicy. I am wondering if the recipe calls for a pound of pasta but actually is made for the 12 or 13 oz box. Most pasta does not come in 1 lb anymore (just like a lot of things that are shrinking in size), but I purposely purchased a 1 lb package.
I might think about making this again, but will be with less of the horseradish, crushed red pepper, pepperoncini’s and liquid.
Rob says
I made this and it was delicious. However, I felt the dressing wasn’t enough and upped it by alot.( I don’t really use measuring spoons or cups, I eyeball it and my hands) Also added mustard powder, and salt. And more peas. Also I prefer to make a macaroni tuna salad for a meal so I added 4 small cans of tuna.
It’s a keeper for me??
Cathy says
Yes, adding all the extras would definitely require more dressing.
Tracy Collins says
Great recipe! I’m a big egg fan so I doubled them!
Katherine A McCarroll says
Can’t wait to try this
Bess says
Loved, loved the flavor in this. Followed your tip for making in advance and it was so creamy and tasty.