In a large mixing bowl, combine the creamy peanut butter and honey (or maple syrup) until smooth and well blended.
Add in the rolled oats, protein powder, chia seeds, vanilla extract, and a pinch of sea salt. Stir until all ingredients are fully mixed and a dough-like consistency forms.
Line a square baking dish (approximately 8x8 inches) with parchment paper, leaving some overhang for easy removal.
Spread the peanut butter mixture evenly into the prepared dish, using a spatula to press it down firmly and create an even surface.
If desired, melt the dark chocolate chips in a microwave-safe bowl in 30-second intervals, stirring in between until smooth. Drizzle the melted chocolate over the pressed mixture or spread it evenly with a spatula.
Refrigerate the bars for at least 1-2 hours until firm. Once set, lift the bars out of the dish using the parchment paper edges and place on a cutting board. Cut into squares or rectangles based on your preferred serving size.
Store leftover bars in an airtight container in the refrigerator for up to a week or freeze for longer storage.
Notes
Store leftovers in an airtight container in the refrigerator for up to a week.
Keyword bars, healthy, no bake, peanut butter, snack