Gather your ingredients, measuring them out to ensure a smooth process.
Prepare oat flour by blending regular oats until they reach a fine powder consistency.
In a mixing bowl, combine the creamy peanut butter, honey, vanilla extract, and salt. Stir until smooth.
Add old-fashioned oats, oat flour, and Rice Krispies to the wet mixture. Stir until evenly coated.
Fold in your optional additions until evenly distributed.
Transfer the mixture to a 9x9-inch baking dish and press it down firmly.
Refrigerate for at least 30 minutes to allow it to set.
Once set, cut into desired shapes and sizes. Store leftovers in an airtight container.
