How to Buy Dried Peppers
When buying dried ancho peppers, choose those that are soft to the touch. Hydrating time will be less when peppers are fresh as opposed to being overly dry.
Substitute 8 small poblano chiles, roasted, peeled and deveined, for the hydrated ancho peppers.
Stuff peppers as directed; store in refrigerator until ready to add sour cream topping before serving. No need to heat them up first.