A Passover staple, matzoh ball soup is Jewish penicillin. Before I had a bottle in my mouth I was sipping on this soup, and it’s remained one of my top five favorite foods. This is the only recipe I’ve come across that measures up to my grandmother’s. This matzoh ball is a floater. To make good floaters, you have to get air into the balls, which is best achieved with beaten egg whites. Get the full recipe:.