Preheat oven to 425°F (218°C).
Line a 6-cup or 12-cup muffin tin with muffin cup liners. Set aside. If you do not have muffin cup liners, coat each muffin cup well with butter.
If the soaked flour does not look like pancake batter, add buttermilk or other liquid to thin. Set aside.
In a medium bowl, whisk eggs, add in sweetener, and then whisk until the sweetener dissolves and is fully incorporated with the eggs.
Add the remaining ingredients to the egg and sweetener mixture except for the soaked flour, the baking powder, and the baking soda. Mix well.
Add this mixture to the soaked flour and mix well until thoroughly incorporated. This is your muffin batter.
Sift the baking powder and baking soda into the muffin batter using a mesh strainer. Mix gently to incorporate but DO NOT over mix.
Fill each muffin cup 3/4 full with batter.
Place the muffin tin on the middle rack of the oven and bake the muffins for 5 minutes at 425°F (218°C).
After 5 minutes, lower the oven temperature to 350°F (177°C) and continue to bake the muffins for an additional 25 minutes or until the tops are rounded and golden brown and a toothpick inserted in the middle of a muffin comes out clean.
Repeat with the remaining batter until all muffins are baked.
When the muffins are baked, remove them from the oven and place the muffin tin on a heatproof surface.
Allow the muffins to cool slightly. Once you can handle the muffins, remove them from the muffin tin, transfer them to a cooling rack, and allow them to cool further.
Stored in an airtight container, muffins will stay fresh in the refrigerator for 3-4 days. Stored in a freezer-safe airtight container, muffins will stay fresh in the freezer for 2-3 months.
To reheat muffins, place in a 200°F (93°C) oven for no longer than 15 minutes.