roux recipe

1/2 cup mayonnaise - 1/2 cup sour cream - 1/2 cup buttermilk (adjust for desired consistency) - 1 tablespoon fresh lemon juice (or white vinegar) - 1 teaspoon garlic powder - 1 teaspoon onion powder - 1 teaspoon dried dill - 1 teaspoon dried parsley - 1 teaspoon dried chives - Salt and black pepper to taste