Homemade ranch = the secret ingredient your fridge has been waiting for. Ingredients 1. Dressing cup mayonnaise cup sour cream 1 teaspoon dried parsley teaspoon dry dill Homemade Ranch Dressing Recipe with Sour Cream and Mayonnaise Steakhouse Ranch Dressing 1 2 c sour cream, 1 2 c mayo, 1 2 c milk, 1 2 tsp onion powder, 1 2 tsp garlic powder, 1 2 tsp dried parsley, 1 2 tsp dried chives, 3 4 tsp dillweed, 1 tsp lemon juice, Buffalo Ranch Dressing The Midwest Kitchen Blog