In a large mixing bowl, combine the rolled oats, almond flour, cocoa powder, and fine sea salt. Stir thoroughly until all the dry ingredients are well blended.
In another bowl, whisk together the pure maple syrup, peanut butter, and peppermint extract until the mixture is smooth and seamless.
Pour the wet mixture over the dry ingredients. Stir with a spatula or wooden spoon until everything is well incorporated and the mixture forms a sticky, cohesive dough.
Prepare an 8x8-inch baking dish by lining it with parchment paper, ensuring there’s an overhang on the sides for easy removal later.
Transfer the sticky mixture to the lined baking dish. Use a spatula or your hands to press the mixture down firmly and evenly across the bottom of the dish, creating a solid layer.
In a microwave-safe bowl, combine the dark chocolate chips and coconut oil. Heat in the microwave in 30-second intervals, stirring after each round, until the chocolate is fully melted and smooth.
Carefully pour the melted chocolate over the pressed mixture in the baking dish. Use a spatula to spread the chocolate evenly over the top for a smooth finish.
Refrigerate the baking dish for at least 2 hours, or until the chocolate and mixture are completely set.
Once chilled and firm, use the parchment paper to lift the bars out of the dish. Place them on a cutting board and slice them into squares or bars of your desired size.
For an extra burst of mint flavor and presentation, drizzle more melted dark chocolate on top or sprinkle some crushed mint leaves before serving.
Notes
Serve the bars on a decorative plate, garnished with fresh mint leaves for a refreshing touch. Store any leftovers in an airtight container in the refrigerator for up to a week.