Whisk eggs by hand to incorporate into a liquid in a bowl. Combine in flour and milk and refrigerate overnight (or chill in the freezer for about 10 minutes before using). This is a liquid batter.
Coat the bottom of your muffin pan.
Pour the liquid batter into the muffin pan, about half full for uniform muffins. Or if you want more of a rustic look, where the muffins have different large muffin tops like a wild mushroom, then fill a little more to the top.
Bake at 350°F for about 15 minutes, then turn the oven to 375°F and bake for another 15 minutes until the top is golden to deep browned. You can create a sheen on top with milk or egg wash if you like.