Dill Mustard Sauce

This is the Scandinavian-style sauce you want next to a slab of cured salmon or alongside a roast pork tenderloin. Three ingredients, no cooking, ten minutes from bowl to fridge. Sweet prepared mustard brings the tangy backbone, full-fat sour cream gives it body and cool richness, and a generous half-cup of chopped fresh dill carries the bright, grassy flavor that defines the sauce.

It mellows beautifully with a few hours in the fridge as the dill perfumes the cream. Spoon it onto smoked fish boards, drizzle over roasted potatoes, or use as a dip for raw vegetables.

Kitchen Tips

• Use a sweet German or honey mustard, not yellow ballpark or fierce Dijon. The recipe leans on that distinct sweet-tangy profile to balance the sharp dill.
• Use fresh dill only. Dried dill weed tastes like hay in this sauce and lacks the volatile oils that make it special.
• Make it at least 30 minutes ahead. The flavors need a brief rest to come together; straight from the bowl it tastes like three separate ingredients.
• Stick to the 3-day refrigeration limit. Fresh dill loses its bright top notes after that and the sour cream can start to separate.

Variations

• Swap sour cream for thick Greek yogurt for a tangier, lower-fat version.
• Add 1 tablespoon of fresh lemon juice and a teaspoon of zest for extra brightness with cured fish.
• Stir in 2 tablespoons of capers, drained and roughly chopped, for a briny edge that works with smoked salmon.