1In a large mixing bowl, combine the oats and powdered milk.
Add the peanut butter and honey to the dry ingredients and mix well until fully combined.
Fold in the dark chocolate chips, ensuring they are evenly distributed throughout the mixture.
Line a baking dish with parchment paper and press the mixture firmly into the dish, spreading it evenly.
Refrigerate for at least 1 hour to allow the bars to set.
Once set, remove from the refrigerator and cut into bars of your desired size.
Store the bars in an airtight container in the refrigerator for up to one week.