Ina Garten's Kielbasa with Mustard Dip | Williams Sonoma

Ingredients

• 1 1/4 lb. (625 g) smoked kielbasa (Polish sausage)
• 2 Tbs. good olive oil
• 1/2 cup (8 oz./250 g) good mayonnaise, such as Hellmann’s
• 2 Tbs. Dijon mustard
• 1 tsp. whole-grain mustard
• 1 tsp. prepared horseradish
• 1/2 tsp. kosher salt
• 1/4 tsp. freshly ground black pepper