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The tang of the mustard sauce offsets the sweetness of the caramelized onions in these bratwurst and kielbasa grinders.

Mustardy Sausage Sandwiches

  • Prep Time: Less than 15 Minutes
  • Cook Time: Less than 60 Minutes
  • Level: Beginner
  • Course: Entrée
  • Serving Size: Serves 8-12
Ingredient Description:
3 Tbsp. vegetable oil
5 large onions, thinly sliced
2 cloves garlic, minced
4 - 6 bratwurst sausages
4 - 6 kielbasa (Polish sausages)
3 Tbsp. all-purpose flour
1 1/2 c. chicken broth, preferably reduced-sodium
1/4 c. ketchup
1/4 c. Dijon mustard
2 Tbsp. prepared horseradish
8 - 12 French rolls, split and warmed

  1. Preheat a 4.5- or 6.5-qt. sauce pan over medium-high heat until rim of pan is hot to the touch. Add 2 Tbsp. of the oil and heat for about 1 more minute.
  2. Mix in onions and garlic. Reduce heat to medium; cover and cook, stirring occasionally, until onions are very soft, about 10 minutes. Reduce heat to medium-low; uncover and cook, stirring often, until onions are golden, about 15 - 20 more minutes.
  3. Add as many bratwurst and kielbasa as will fit in pan without crowding. Cook, turning as needed, until sausages are browned on all sides. As sausages brown, remove from pan and keep warm.
  4. When all sausages are browned, stir flour into onion mixture. Gradually add broth; increase heat to medium and cook. Stir until sauce boils and thickens. Blend in ketchup, mustard and horseradish. Cook, stirring often, until sauce is hot. Lightly mix sausages into sauce; spoon sausages and sauce into rolls (or place browned sausages in rolls direct from grill; spoon sauce over them).