In a large bowl, stir together the peanut butter, coconut oil, maple syrup, vanilla, and salt until combined. Add the almond flour and maca and stir to combine (the mixture will be thick). Fold in the chocolate chips and press into the pan. Place in the freezer so that it firms up a bit while making the next layer.
In a small food processor, pulse the walnuts, cacao powder, and sea salt until the walnuts are well chopped. Add the dates and pulse to combine, adding 2 tablespoons water if the blade gets stuck. Process until smooth, then spread onto the cookie layer. Sprinkle with sea salt if desired. Freeze for 30 minutes (this will help them firm up, making them easier to cut). Remove and slice into bars. Store remaining bars in the fridge.
Finished bars can also be frozen. Let each bar thaw for about 15 minutes at room temperature.
*Look for creamy peanut butter with a smooth consistency to make this recipe, not the dry, stiff stuff that you might find at the bottom of a jar of natural peanut butter. If you store your peanut butter in the fridge, allow it to sit at room temperature for an hour before making this recipe.
Recipe by Love and Lemons at https://www.loveandlemons.com/peanut-butter-chocolate-chip-cookie-bars/