When I was younger my everyday breakfast was always waffles. My father loved them, as he had gotten the recipe from my grandmother. The batter is easy to make and can be whipped up in less than 15 minutes in the morning and stored in an airtight container for up to 3 days.
So prepare it during a school week and your kids can make their own breakfast in the morning.

Ingredients:
200g flour
100g sugar
3 eggs
2 tsp vanilla sugar
pinch of salt
1 tsp baking powder
400ml milk (alternative milk is also possible)
100g butter
Let's start cooking:
In a bowl add flour, sugar, baking powder, and a pinch of salt
Mix thoroughly
Separate the eggs and add the yolk to the flour mixture

Beat the egg whites with the vanilla sugar until fluffy so that when you turn the bowl around nothing will fall out
For the batter you will need to soften butter, easiest is to cut the butter into small cubes and place it for a few seconds into the microwave just so that it is slightly melter but not warm
Mix the butter with the flour mixture and the egg yellow
Little by little add in your milk until everything is smooth
Beat the batter for 3 minutes so that more air is incorporated
Now carefully stir in with a spatula the beaten eggwhite you don't want to lose any of that airiness
Done is your batter! Now use a waffle iron and don't forget to grease it so that your waffles won't stick
Serve with maple syrup or some fresh marmalade
Enjoy!