5-Minute Horseradish Cream Sauce
This horseradish cream sauce is the sharp, tangy partner your roast beef has been waiting for. It comes together in a single bowl with just a handful of fridge staples, and you can spoon it over anything from prime rib to a simple steak sandwich.
The sauce needs nothing more than a quick stir to come together. Let it rest while you finish the rest of dinner and the flavors settle into a creamy, punchy balance.
What Makes This Sauce So Good
The sour cream mellows the horseradish’s raw heat so you get a clean, lingering warmth instead of a sharp sting. A little Dijon and lemon juice round it out, and the whole thing tastes brighter and fresher than store-bought versions that sit around for weeks.
I keep a jar of this in the fridge and find myself reaching for it more often than I expect. It does double duty as a sandwich spread and a quick dip for roasted potatoes, so the batch rarely lasts more than a few days.
Ingredients
- 1 cup sour cream: full-fat gives the creamiest body; reduced-fat works but the sauce will be a bit thinner
- 3 tbsp prepared horseradish: use the refrigerated kind, not a creamy horseradish sauce that already contains mayo or sour cream
- 1 tsp Dijon mustard: adds a little back-end tang without taking over
- 1 tsp fresh lemon juice: brightens the whole thing
- ¼ tsp fine sea salt: start here and add more after tasting
- ⅛ tsp black pepper: just a few grinds
Variations and Substitutions
- Swap Greek yogurt for sour cream: you’ll get a tangier, slightly looser sauce that still works well
- Adjust the heat: start with 2 tbsp horseradish if you want a milder sauce and increase by the teaspoon until it tastes right
- Add fresh chives: stir in 1 tbsp minced chives for a mild onion note that pairs well with steak
- Use fresh horseradish: grate 1 tbsp peeled fresh horseradish root in place of the prepared version for a sharper, more floral bite
This same creamy base makes a great shortcut for the sauce on a French dip sandwich.
How to Make Horseradish Cream Sauce
Step 1: Mix the Sauce Base
Scoop the 1 cup sour cream into a medium bowl. Add the 3 tbsp prepared horseradish, 1 tsp Dijon mustard, 1 tsp lemon juice, ¼ tsp salt, and ⅛ tsp pepper. Whisk everything together until the sauce is completely smooth and no streaks of horseradish remain, about 20 seconds.
At this point you can serve it right away, but the flavors settle and deepen if you cover the bowl and refrigerate it for 30 minutes while you finish cooking.
Step 2: Taste and Adjust
Give the sauce a stir and taste it with a clean spoon. If it feels a little flat, add another pinch of salt or a small squeeze of lemon juice and stir again. The horseradish taste will come forward more after a few minutes, so don’t overdo the extra horseradish now.
This is also the moment to add black pepper or a dash of hot sauce if you want an extra layer of warmth.
Step 3: Dollop and Serve
Spoon the sauce into a small serving bowl and set it next to the main dish. The creamy white sauce with a few cracks of black pepper on top looks simple and clean beside slices of roast beef or grilled steak.
Serve it chilled or at cool room temperature so it stays thick enough to cling to whatever you put it on.
Tips for the Best Horseradish Cream Sauce
- Let it rest before serving. Even 10 minutes on the counter helps the flavors come together. If you can make it a few hours ahead, the sauce gets even rounder.
- Use a refrigerated prepared horseradish jar, not the shelf-stable kind. The cold-packed version has a brighter, cleaner heat and usually lists only horseradish, vinegar, and salt.
- If the sauce thickens too much after chilling, stir in a teaspoon of cold water or milk to loosen it back up.
- Double the batch if you’re serving more than four people. It keeps well and you’ll want extra for leftovers.
Scale it to your crowd:
| Servings | Sour Cream | Prepared Horseradish | Dijon Mustard |
|---|---|---|---|
| 4 | ½ cup | 1½ tbsp | ½ tsp |
| 8 | 1 cup | 3 tbsp | 1 tsp |
| 16 | 2 cups | 6 tbsp | 2 tsp |
Storing Leftovers
- Refrigerate: keep the sauce in an airtight container for up to 5 days. The horseradish heat softens a bit over time, so taste it before serving and add a fresh dab of prepared horseradish if you want to bring back some edge.
- Do not freeze: the sour cream can separate and turn grainy once thawed.
What Goes Well With Horseradish Cream Sauce
This sauce belongs next to a classic roast beef or a thick slice of prime rib, where the richness of the meat plays against the cool, sharp cream. Spoon it onto a steak sandwich with caramelized onions, or use it as a dip for crispy roasted potatoes or a pile of steamed green beans. It also brightens up a simple baked salmon fillet, cutting through the fattiness with a little tang.
Frequently Asked Questions
Can I use Greek yogurt instead of sour cream?
Yes. The sauce will be tangier and a touch thinner, so stir in an extra tablespoon of horseradish to compensate for the yogurt’s stronger sour note.
Is this sauce gluten-free?
Yes, as long as your prepared horseradish is a plain vinegar-and-salt version with no added malt vinegar or fillers. Most are naturally gluten-free.
How far in advance can I make it?
You can make it a day ahead and refrigerate it overnight. Give it a quick stir before serving and adjust the salt or lemon juice if needed.
My sauce turned out too thin. What can I do?
If you used a thinner sour cream or yogurt, drain off any liquid that separates, then stir in an extra spoonful of sour cream to thicken it back up.
Can I add other herbs?
Absolutely. Minced fresh dill, parsley, or tarragon all work well. Start with 1 teaspoon and adjust from there.
Horseradish Cream Sauce Recipe
Ingredients
Method
- In a medium bowl, whisk together the sour cream, prepared horseradish, Dijon mustard, lemon juice, salt, and pepper until smooth.
- Taste and adjust the seasoning with more salt, lemon juice, or horseradish as needed.
- Serve immediately or cover and refrigerate for 30 minutes to let the flavors meld, then spoon into a serving bowl.
