In a small bowl, whisk together the eggs and vanilla extract.
Set this mixture aside, as you'll need it shortly.
In another bowl, mix the flour, sugar, baking soda, and salt.
Combine these dry ingredients evenly.
In a medium bowl, stir the flour mixture into the sour cream until the ingredients are just combined.
Don’t worry if the batter is slightly lumpy—it should be!
Add the egg mixture to the flour and sour cream mixture.
Stir briskly to ensure everything is evenly distributed.
Heat a griddle or large skillet over medium-low heat.
Melt a bit of butter before pouring a small amount of batter for each pancake.
Cook until bubbles form on the surface and the edges look set.
Flip and cook until golden brown.
Serve immediately for best results.