Mustard-Dill Sauce: Whisk together 3 tablespoons Dijon mustard, 1 tablespoon whole-grain mustard, 2 tablespoons honey, 2 tablespoons white wine vinegar. Slowly drizzle in ½ cup neutral oil while whisking. Stir in 3 tablespoons finely chopped fresh dill, season with salt and white pepper. Refrigerate until needed.