Horseradish Sandwich Butter

Two ingredients. Five minutes. This compound butter packs a sinus-clearing horseradish punch that transforms any roast beef sandwich from ordinary to memorable.

Freshly grated horseradish root is a must here. The prepared stuff in a jar is vinegar-preserved and milder. Fresh root grated fine releases volatile oils that hit your nose immediately and fade into a clean, peppery warmth. Two teaspoons blended into a quarter pound of unsalted butter gives a spread with real bite but not so much that it overwhelms the bread or meat.

Using unsalted butter lets the horseradish flavor come through clean. Salted butter would add a competing flavor and could push the overall seasoning too far since horseradish already has a natural sharpness.

Spread this on crusty bread for roast beef sandwiches, melt a pat on a hot steak, or use it on warm dinner rolls alongside a prime rib.

Kitchen Tips

• Soften the butter to room temperature before mixing. Cold butter won’t incorporate the grated horseradish evenly.
• Grate the horseradish as fine as possible so it distributes through the butter without leaving fibrous chunks.
• Make this ahead and store in the fridge. The heat mellows slightly over a day or two, so fresh-made packs the biggest punch.
• Roll into a log in plastic wrap and chill for sliceable rounds.

Variations

• Add a teaspoon of Dijon mustard for a sharper, more complex spread.
• Mix in a tablespoon of chopped fresh chives for color and a mild onion note.
• Stir in a pinch of smoked paprika for a smoky-hot variation.