For an extra touch of decadence, consider adding a sprinkle of nutmeg or a dash of hot sauce to the egg mixture. Ensure the sweet potatoes are diced uniformly for even cooking in the air fryer. If you don't have a silicone egg bite mold, you can use ramekins, but be sure to grease them well. Adjust sweetness to your preference; you may need more or less sugar substitute depending on your taste.