Source: My Husband (originally most likely, his Mom)
1 medium onion
10 whole pieces of Matzo’s
Coarsely chop onion.
In large frying pan – put in approx 4 tablespoons of canola oil and sauté onion on med-high heat until soft and slightly brown.
While the onions are sautéing in a small mixing bowl whisk the 5 eggs in a bowl and set aside.
Then take the 10 Matzo’s and break up into medium/small pieces into a large bowl. Fill bowl full of broken matzo with water and immediately drain (do not leave water in that long as it will make the matzo soggy).
The onion’s should be ready at this point, if not wait. When ready, pour egg mixture into large bowl with Matzo and, mix so that all pieces of matzo are covered in egg. Pour egg/matzo mixture in pan and then combine with onions. Cook on medium for approx 5-10 minutes. Matzo Brei should be slightly dry and crisp.
Usually, I leave the salt and pepper out and handle that after plating.