If you're looking for a sugar-free peanut butter chocolate cake recipe, this one is perfect for you. The cake is sweetened with a sugar substitute like stevia or erythritol, which won't spike your blood sugar levels. The cake is made with almond flour and coconut flour, which are both low in carbs and high in fiber. The peanut butter provides a good source of protein and healthy fats, while the dark chocolate is rich in antioxidants. Serve it with a dollop of whipped cream or a sprinkle of cocoa powder for a dessert that's both sugar-free and delicious.