Ingredients

1 loaf of seeded rye bread

1/2 c. plus 2 tablespoons extra-virgin olive oil

2 tbsp. Grainy mustard

3 tbsp. Champagne vinegar

1 1/2 tbsp. unsalted butter

1 onion

10 oz. kielbasa

1 1/4 c. sauerkraut

Freshly ground pepper

Preparation

Step 1Preheat the oven to 350 degrees F. On a large rimmed baking sheet, toss the bread with 1/4 cup of the olive oil. Toast for 15 minutes, or until lightly golden around the edges. Transfer the bread to a large bowl.Step 2In a small bowl, whisk the mustard with the vinegar and the remaining 6 tablespoons of olive oil.Step 3In a large skillet, melt the butter. Add the onion and cook over moderate heat until softened, about 4 minutes. Add the kielbasa and cook until it begins to brown, about 5 minutes. Stir in the sauerkraut and cook until warm. Add the sausage and sauerkraut to the bread cubes, pour the dressing on top and toss well. Season with pepper and serve.