Cheesy Buttery Puff

CHEESY BUTTERY PUFF

10 Ritz Crackers, crushed (about 1/3 cup)
1/2 cup milk
1/4 lb. (4 oz.) Velveeta, cut into 1/2-inch cubes
4 oz. (1/2 of 8-oz. pkg.) cream cheese, cubed, softened
4 eggs, separated
3 Tbsp. chopped fresh chives

Heat oven to 375 degrees. Spread cracker crumbs onto bottom of 9-inch square baking dish sprayed with cooking spray. Microwave milk, Velveeta and cream cheese in large microwaveable bowl on high 1-1/2 minutes or until smooth, stirring after each minute. Whisk egg yolks and chives until well blended. Stir into Velveeta mixture. Beat egg whites in small bowl with mixer on high speed until stiff peaks form; gently stir into Velveeta mixture. Pour into prepared dish. Bake 20 to 25 minutes or until puffed and golden. Serve immediately. Makes 6 servings.