For the best texture, use a natural peanut butter made only from peanuts and salt and stir it well before measuring to avoid an oily or dry base. If the peanut butter layer feels too soft to press, add extra coconut flour a teaspoon at a time until it holds its shape without cracking. To keep these bars firmly set, store them chilled and let them sit at room temperature for just a few minutes before serving if you prefer a slightly softer bite. You can customize the sweetness by adding a little more or less keto sweetener to both the base and the chocolate topping. These bars freeze well when layered between sheets of parchment paper in a sealed container, making them ideal for make-ahead treats that stay keto friendly.