Cheddar Cheese Ball

1- 8oz pkg. cream cheese, softened
1 tablespoon mayonnaise
1 teaspoon lemon juice concentrate
1- 8oz pkg. shredded Cheddar cheese
1/4 cup finely chopped onion

In a medium bowl, blend cream cheese, mayonnaise and lemon juice concentrate. Mix in Cheddar cheese, and onion. Form the mixture into a ball shape. Cover and chill in the refrigerator 3 hours, or until firm, before serving. Serve with crackers, bagel chips, etc.