Creamy Horseradish Sauce

This creamy horseradish sauce is sharp, tangy, and easy to make with just a few ingredients. It comes together in under 5 minutes, but once it sits for a bit, the flavor gets even better. I use it most with prime rib, roast beef, steak, and crab cakes, but it’s one of those sauces that ends up working with a lot more than that.

Why This Creamy Horseradish Sauce Works

I first made this horseradish sauce recipe to go with prime rib, and wanted a creamier version that you just can't get at steakhouses. I always like rich beef better with something cold, tangy, creamy, and sharp on the side, and this sauce does exactly that.

The horseradish gives it that classic kick, while the sour cream keeps it creamy enough to balance everything out instead of tasting too harsh. The Dijon and lemon do more work here than you’d think. They brighten the sauce and keep it from feeling heavy, which is part of why it works so well with richer foods like roast beef and steak.

After making it for prime rib, I started using it with roast beef sandwiches, salmon, and crab cakes too, and it’s one of those simple sauces that ends up being useful way beyond the original plan.

Ingredients You'll Need

• 1 cup sour cream
• 3 tablespoon prepared horseradish
• 1 teaspoon Dijon mustard
• 1 teaspoon lemon juice
• Salt and pepper, to taste

How to Make Creamy Horseradish Sauce

Step 1: Combine the Ingredients

Add the sour cream, prepared horseradish, Dijon mustard, lemon juice, salt, and pepper to a small bowl.

Step 2: Mix Until Combined

Stir everything together until smooth and fully incorporated. The sauce should be creamy and uniform with no streaks of unmixed horseradish.

Step 3: Rest Before Serving

Allow the sauce to sit for at least 5 minutes before serving, or refrigerate it until ready to use. Even a short rest makes a noticeable difference as the flavors meld and the sharpness of the horseradish settles into the creamy base.

Pro Tips for the Best Horseradish Sauce

Drain the prepared horseradish before measuring. Prepared horseradish is packed in liquid, and adding that liquid directly to the sauce can make it too thin and watery. Spoon it out and let any excess liquid drain off first for a thicker, more cohesive sauce.

Taste before adding salt. Prepared horseradish already contains some salt, and Dijon mustard adds a little more. Taste the sauce before seasoning and add salt judiciously so you don't end up with something too salty.

Let it rest longer for deeper flavor. Five minutes is the minimum, but 30 minutes in the fridge is where the sauce really comes together. An hour is even better. Making it the day before you need it produces the most developed, cohesive result.

Adjust the horseradish to your heat preference. Three tablespoons gives you a noticeable but approachable kick. Add a fourth tablespoon if you want more heat, or reduce to two for a milder, creamier sauce. The heat from prepared horseradish is sharp and immediate rather than lingering, so the adjustment is easy to dial in to taste.

Use full-fat sour cream. Full-fat sour cream gives the sauce a richer, creamier texture and more body than reduced-fat or light versions. This is a simple sauce that relies on good ingredients, so the sour cream matters.

Add a pinch of sugar to balance. If your prepared horseradish is particularly sharp or acidic, a tiny pinch of sugar stirred in rounds out the edges without making the sauce taste sweet.

Ways to Use Creamy Horseradish Sauce

This sauce is best with rich or savory foods that need something cold, sharp, and creamy on the side. I make it most often for beef, but once it’s in the fridge, it usually ends up on a lot more than that. Here are some of my favorite pairings:

Prime rib: the classic pairing and one of the best uses for it

Roast beef sandwiches: spread it on the bread for an easy upgrade

Steak: really good with ribeye, sirloin, strip, or filet instead of a heavier steak sauce

Salmon: the lemon and horseradish work especially well with baked salmon or pan-seared salmon

Crab cakes: a great option if you want something sharper than remoulade

Deviled eggs: stir a spoonful into the filling for extra tang and heat

Roasted vegetables: especially good with broccoli, cauliflower, or asparagus

Horseradish Sauce FAQs

What is creamy horseradish sauce made of?

This creamy horseradish sauce is made with sour cream, prepared horseradish, Dijon mustard, lemon juice, salt, and pepper. It comes together in just a few minutes and gives you a sauce that’s tangy, creamy, and sharp enough to cut through rich foods.

What is prepared horseradish?

Prepared horseradish is grated horseradish root packed in vinegar and salt. It’s what gives the sauce that classic sharp kick. Make sure you’re using prepared horseradish, not pre-made horseradish sauce, since horseradish sauce is already mixed with creamy ingredients.

How spicy is creamy horseradish sauce?

It has a noticeable kick, but it’s more sharp and sinus-clearing than hot like chili peppers. The sour cream softens it quite a bit, so the sauce still tastes balanced instead of overpowering.

Can I make horseradish sauce ahead of time?

Yes, and it’s actually better that way. Giving it a little time in the fridge helps the horseradish, mustard, lemon, and seasoning blend together.

How long does creamy horseradish sauce last in the fridge?

Store it in an airtight container in the refrigerator for up to 4 days. Give it a quick stir before serving if it thickens slightly as it chills.

Can I use Greek yogurt instead of sour cream?

Yes. Full-fat Greek yogurt works well and gives the sauce a slightly tangier, lighter flavor while keeping a similar texture.

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