graham crackers, crushed (about 1 cup)
plus 2 Tbsp. sugar, divided
key limes, divided
(8 oz. each) PHILADELPHIA Cream Cheese, softened
Combine graham crumbs, butter and 2 Tbsp. sugar until blended.
Grate zest, then squeeze juice from 3 limes. Reserve remaining lime for later use.
Beat cream cheese, milk, lime zest, lime juice and remaining sugar in medium bowl with mixer until blended. Gently stir in 1-1/2 cups COOL WHIP.
Reserve 1 Tbsp. graham crumb mixture for later use; spoon remaining crumb mixture evenly into 10 (4-oz.) glass jars. Top with layers of cream cheese mixture and remaining COOL WHIP. Sprinkle with reserved crumb mixture.
Refrigerate 1 hour. Cut remaining lime into 10 wedges; use to garnish desserts just before serving.