Add the cacao powder, yogurt, and honey to a small bowl. Stir until smooth. Add the essential oil, and stir.
To Use:
Apply the mask to the face using your fingers or a brush. Allow the mask to rest on your face for 5-10 minutes, until it begins to dry. Rinse with a warm, damp washcloth. I like to follow-up with toner and moisturizer.
Notes
This recipe makes enough for two mask applications. Use a portion of the mask and store the rest in an air-tight container in the fridge. Use the mask within 4-5 days. If you don't have any peppermint essential oil, skip it. It definitely adds to the experience, but you can still make a beneficial mask without it.