Creamy DIY Steakhouse-Style Horseradish Sauce - A Duck's Oven

Ingredients

• 1/2 cup sour cream
• 1/4 cup mayonnaise
• 2 tbsp prepared horseradish (drained)
• 1 tbsp dijon mustard
• 1 tbsp finely chopped chives
• 1 tsp white vinegar
• 1/2 tsp salt
• 1/4 tsp freshly cracked black pepper