Crack eggs in a medium mixing bowl, add vanilla, and whisk.
In a large mixing bowl combine flour, sugar, baking soda, and sea salt.
Mix in sour cream to the dry ingredients until just barely incorporated.
Whisk in the egg mixture until just incorporated.
Heat a nonstick griddle/pan to medium/medium-low.
Grease the griddle with some butter.
Once butter has melted, quickly add about ½ cup of batter to the griddle. If you have enough room, add more batter, making sure to keep enough space between pancakes.
Quickly add about 3 or 4 banana slices per pancake.
Spoon about 1 tablespoon of light brown sugar over each pancake.
Once bubbles start forming on the pancakes, flip and cook the other side until golden brown. Adjust griddle heat accordingly.
Optional: Take additional banana slices and cook individually until caramelized on each side.
Serve pancakes with some butter, warm maple syrup, and additional caramelized banana slices. Enjoy!