Begin by gathering a large mixing bowl. Add the rolled oats, followed by the creamy peanut butter, honey (or maple syrup), and vanilla extract. Stir these ingredients together until they form a well-combined, sticky mixture.
Next, delicately incorporate the mini chocolate chips and chopped nuts into the oat mixture. Carefully fold them in until everything is evenly distributed, ensuring you preserve some of the texture.
Prepare a muffin tin by either lining it with paper liners for easy removal or spraying each cup generously with cooking spray to prevent sticking.
Using a tablespoon, scoop a generous amount of the oat mixture into each muffin cup. Firmly press down the mixture with the back of a spoon or your fingers until it is compact and evenly distributed across the bottom of each cup.
Once all the cups are filled, place the muffin tin in the refrigerator. Allow the oat cups to set for at least 1 to 2 hours, or until they have firmed up completely.
After the setting time, carefully remove the cups from the muffin tin. If you used liners, peel them away gently for a tidy finish. Store any leftover oat cups in an airtight container in the refrigerator to maintain freshness.
Notes
Arrange the oat cups on a vibrant platter for presentation. Drizzle additional peanut butter on top for a delightful visual flourish.