Creamy Horseradish Sauce

Creamy horseradish sauce is the traditional partner to a roast prime rib or beef tenderloin, and unlike thick jarred cocktail-sauce versions, this one is light and cloud-like. The secret is whipped cream. Instead of a mayo-and-sour-cream base, freshly whipped heavy cream folds around the horseradish to tame its sinus-clearing bite into something you can actually eat in spoonfuls.

The technique is straightforward but requires care. A quarter cup of prepared white horseradish gets drained and squeezed dry first. That step matters. Unsqueezed horseradish adds liquid that deflates the whipped cream instantly. The dried horseradish mixes with sugar, Dijon mustard, white vinegar, salt, and a pinch of paprika until smooth. Then a full cup of whipped cream folds in gently, sparing the volume as much as possible.

Chill at least 2 hours before serving. This lets the flavors settle and mellow, and gives the sauce its signature fluffy-but-structured texture. Make it the day you plan to serve. Whipped cream deflates overnight.

Kitchen Tips

• Chill the mixing bowl and the beaters in the freezer for 10 minutes first. Cold equipment whips cream taller, faster, and holds the volume longer.
• Squeeze the horseradish hard in a clean kitchen towel or cheesecloth. Every drop of water you remove is volume you preserve in the finished sauce.
• Whip the cream to medium peaks, not stiff. Over-whipped cream folds less gracefully and can turn grainy against the acidic horseradish.
• Fold, don’t stir. Use a rubber spatula and cut down through the middle, lift and over, rotating the bowl until just combined.

Variations

• With chives: Stir a tablespoon of chopped fresh chives through the finished sauce for a sharper herbal note.
• Lemon zest lift: Add ½ teaspoon of fresh lemon zest for brightness, especially lovely with smoked salmon.
• Make-ahead sour cream version: For a sturdier sauce that lasts 3 days, swap half the whipped cream for sour cream.