Once you are ready to make the waffles, plug in your waffle iron so it can be ready when you are done mixing the final ingredients.
Add your 3 eggs, 1tsp of baking powder, ¼ tsp of baking soda, ½ c of milk, juice and zest from your lemon, and 1 tbsp of chia seeds to your sponge. Mix until well incorporated
Grease your iron well, and cook according to the directions of your waffle iron.
Enjoy with some yummy syrup, raspberry jam, whipped cream, or whatever else you like to top waffles with.