In a medium-sized mixing bowl, combine the creamy peanut butter, honey (or maple syrup), and vanilla extract. Stir vigorously until the mixture is smooth and all ingredients are harmoniously blended together.
Introduce the rolled oats, coconut flour, and a pinch of salt into the peanut butter mixture. Mix well, ensuring that all ingredients are thoroughly incorporated. The final mixture should be thick and sticky, almost dough-like in consistency.
Prepare an 8x8-inch square baking dish by lining it with parchment paper. Leave some overhanging paper on the sides for easy lifting later.
Pour the peanut butter mixture into the lined baking dish, spreading it out evenly. Use a spatula or your hands to press it down firmly to achieve a compact and even layer.
In a microwave-safe bowl, place the dark chocolate chips and melt them in 20-second intervals. Stir well between each interval until the chocolate is completely smooth and melted.
Carefully pour the melted chocolate over the pressed peanut butter layer in the baking dish. Use a spatula to spread the chocolate evenly.
Transfer the dish to the refrigerator and allow the bars to chill for at least 1-2 hours, or until they are fully set and firm to the touch.
Once the bars have set, lift them out of the baking dish by holding onto the parchment overhang. Place them on a cutting board and slice them into squares or rectangles, as desired.
Notes
Serve chilled on an elegant platter. Drizzle with melted chocolate and sprinkle with crushed nuts for added flair.