Preheat your oven to 350°F
In a pot over medium heat warm up milk, sugar and vanilla extract (give it a good stir to incorporate all the ingredients)
In a separate bowl mix eggs and flour while adding about half of the warm milk. Mix until smooth
Transfer the egg yolk mix back into the pot with the rest of the milk and stir over medium heat until thickened. Should have similar texture to a thick cake batter. Remove from the heat
Use a small ramekin and coat it with butter and cocoa powder (or you can use powdered sugar as well)
Whip your egg whites and sugar, then gently fold into the vanilla egg base until smooth
Fill your ramekin all the way leaving about ¼ inch space at the top
Bake for 12-15 minutes or until you see the soufflé rise and become slightly golden on top
Dust with powdered sugar
Add melted vanilla ice cream in the center (optional) and enjoy!
