Preheat the oven to 350ºF and line a 12 cup muffin tin with parchment baking liners.
To a mixing bowl or stand mixer, add the sourdough starter eggs, and milk and stir until the starter is loosened up. Add the honey, avocado oil, and vanilla and mix until smooth.
Add the flour, cornmeal or almond flour, sugar, baking powder, and salt to the bowl and stir until the mixture is just combined (don't overmix).
Use a spoon or a dough scoop to divide the mixture into to the 12 cups of the muffin tin. I did about 2 scoops per cup to fill each about 3/4 of the way.
Transfer to the oven and bake for 20 to 25 minutes or until the muffins are puffed up, set in the center, and lightly golden. Cool for a few minutes before transferring to a cooling rack. Enjoy warm!