Preheat the Oven: Set your oven to 350°F (175°C). Prepare an 8x8 inch baking dish by lining it with parchment paper, ensuring there's some overhang on the sides for easy lifting later.
Mix Dry Ingredients: In a large mixing bowl, combine the rolled oats, baking powder, and salt. Stir the mixture well until all dry ingredients are thoroughly combined.
Combine Wet Ingredients: In a separate bowl, whisk together the peanut butter, honey (or maple syrup), almond milk, and vanilla extract until the blend is smooth and no lumps remain.
Combine Mixtures: Gradually pour the wet mixture into the dry mixture. Stir until all ingredients are fully incorporated. If desired, gently fold in the chocolate chips, optional chopped nuts, and shredded coconut for additional flavor and texture.
Spread Mixture: Transfer the oat mixture into the prepared baking dish, spreading it out evenly. Use a spatula to press down firmly, ensuring a compact and even layer.
Bake: Place the dish in the preheated oven and bake for about 20-25 minutes. Look for the edges to turn a golden brown and the center to be set and firm to touch.
Cool Down: Once baked, take the dish out of the oven and let it cool for approximately 10 minutes in the pan. Carefully use the parchment paper overhang to lift the bars out of the pan and let them cool completely on a wire rack.
Slice and Store: After cooling completely, slice the large block into individual bars. Store these nutritious treats in an airtight container, where they will remain fresh for up to one week.
Notes
For an elegant presentation, drizzle melted dark chocolate over the top and serve with fresh fruit.