Preheat oven to 250°F, this is to keep the pancakes warm while you finish the batch.
In large bowl, whisk together your dry ingredients: flour, sugar, baking powder and salt.
In a medium bowl, whisk together eggs, buttermilk, oil and vanilla.
Pour the wet ingredients over the dry ingredients and stir until combined.
Spray a frying pan with cooking spray and heat over medium-high heat.
Pour 1/4 cup of batter into pan, and cook for about 3 minutes.
Flip and cook for another two minutes.
Transfer to a baking sheet and place in the warm oven while the others cook.