1 (8 ounce) package cream cheese, softened
1 cup yellow mustard
1 cup mayonnaise
1 cup mayonnaise with sour cream
1 teaspoon Worcestershire sauce
1 cup diced onion
In a medium bowl, mix together the cream cheese, yellow mustard, mayonnaise, mayonnaise, and Worcestershire sauce. Shape the mixture into a puffs, which are about 1 inch in diameter.
Place sandwiches on a medium baking sheet. Brush the tops with egg white. Pop the tops off of sandwiches onto a table or serving platter. Refrigerate for at least 2 hours to let the flavors blend before baking.