Della Fontane's House Dressing

Ingredients

• 1 cup mayonnaise
• 1 oz blue cheese crumbles
• 1 TB sour cream
• 1/3 cup buttermilk
• 3/4 tsp lemon juice
• 2 tsp olive oil
• 1 tsp white vinegar
• 3/4 tsp garlic powder
• 1 TB wet mustard
• 3/4 tsp horseradish
• black pepper
• salt