Rub together the sugar with the lemon zest, then crack in the eggs and whisk until pale and fluffy.
Pour in the milk, oil, lemon juice, and vanilla extract, then whisk again to distribute the wet ingredients.
Add in the dry ingredients and fold in using a spatula. Ladle a scoop of batter onto a skillet.
Cook until the outside of the pancake gets brown, flip and cook for an additional 2 minutes. Serve as desired.
Notes
Do not over mix the batter. Over-mixing the batter will cause them to become flat and chewy. Switch to a spatula when folding in the flour and the poppy seeds.