Creamy Tomatillo Dressing (Cafe rio style)

1 packet traditional Hidden Valley Ranch mix (not buttermilk)
1 c. mayonnaise
1 c. buttermilk
2-3 tomatillos, remove husk, diced
1/2 bunch of fresh cilantro
1 clove garlic
juice of 1 lime
1 jalapeno ( for a spicy dressing keep the seeds in it; for a mild dressing, remove the seeds)

1. Mix all ingredients together in the blender.