Roast the anaheim pepper. Preheat the broiler. Core the anaheim pepper removing the seeds and membranes (wear something to protect your hands or they might burn from the juices!). Line a baking sheet with aluminum foil and place peppers on the foil skin up. Cook 5-10 minutes, or until the skins are almost completely blackened. The blacker the skins, the easier to peel. Let pepper cool before removing the peel.
Place pepper, seeds, garlic, salt, pepper, and cheese in a blender or food processor. Blend for about 10 seconds then add oil and vinegar to mixture. Add cilantro bit by bit until blended smooth.
Mix in mayonnaise and water thoroughly and devour!
Notes
Makes about 2 cups. The dressing is great on a bed of lettuce with tomatoes, sprinkled with pumpkin seeds, cheese, cilantro, and tortilla chips.
*depending on how you like your consistency. More oil can always be added at the very end if the dressing is too thick.
**If using yogurt instead of mayonnaise, do not add water and go without a few tablespoons of oil.