For maximum fluffiness, use room temperature eggs and avoid overmixing once the whipped egg whites are added to the batter. Keep the heat low so the pancakes rise slowly without burning on the outside before the centers set. If you do not have ring molds, you can fashion tall molds from folded strips of parchment paper and secure them with staples, then grease them well before filling. Leftover pancakes can be cooled completely, layered with parchment, and stored in an airtight container in the refrigerator for up to 3 days, then reheated gently in a covered skillet over low heat. Net carbs will vary based on the amount of berries and syrup used, so keep toppings modest to stay within strict keto macros.