In 1954 a pair of young Nebraskans headed west to open a 120-acre dude ranch near Santa Barbara, California. They called it Hidden Valley Ranch. Steve and Gayle Henson welcomed visitors for hiking, horseback riding, and fishing and served hearty American fare at night. Their homemade buttermilk salad dressing became so popular that guests began buying it by the bottle–and thus the ranch dressing craze was born. This is our take on the classic recipe.
In a small bowl, whisk together all ingredients. Serve immediately or cover and chill up to 1 week.