This is a handwritten recipe card found in a big box of recipes. There is no specific amount mentioned for how much milk to use (just a question mark), but you would use an amount necessary to allow the dough to hold together.
Cracker Balls for Soup
Premium Crackers (ground up) 3 pkg.
1 egg – beaten
Milk – ?
Parsley – chopped
Mix all ingredients together. On a floured pastry board, make a long sausage roll with a handful of dough. Use plenty of flour on board. Roll & cut into pieces (about the size of one die); make balls & drop into boiling water. Cook about 5 minutes. Strain & put into chicken soup.
Enjoy!