Whisk eggs, milk and ¼ teaspoon of salt thoroughly. Set aside.
Run each sheet of matzo under cold running water for about 10 seconds a side. Stack each slightly softened matzo sheet onto a plate. Let sit for about 5 minutes after running the last piece of matzo under water.
Break the matzo into bite sized pieces.
Heat butter (and or oil) over medium low heat in a large frying pan or saute pan until bubbling. Add onion and saute for about 4-5 minutes stirring occasionally.
Add matzo pieces and saute for 3 minutes stirring occasionally.
Add eggs, stirring often and scramble until they are almost dry.
Remove from heat. Season with salt and pepper.
Modifications
I used the food processor to finely chop the onion.Ten eggs and milk seemed a lot for me to whisk by hand, so I tried something new. The electric hand mixer mixed the eggs well and they were a bit lighter than when I whisk them by hand. I’ll be using the electric mixer in the future to whisk more than 5 eggs!