In a food processor, combine the oats and cinnamon. Blend until the oats reach a flourlike consistency. Add the dates and maple syrup. Blend until a paste forms.
Add the peanut butter and blend until well combined and doughy. Depending on your food processor, you might need to add a couple of tablespoons of warm water to reach the desired consistency.
Working with about 1 tablespoon of mixture at a time, roll into 12 balls. Roll each ball in the peanuts. Refrigerate for 1 hour, then serve.