Step 1

Process cream cheese, butter and 1-1/2 cups flour in food processor 30 sec. or until ingredients are well blended and forms dough that pulls away from side of food processor container.

Step 2

Remove dough from food processor; shape into ball. Flatten into disk. Wrap tightly with plastic wrap. Refrigerate 1 hour.

Step 3

Heat oven to 350°F. Roll out dough between 2 sheets of floured waxed paper to 10-inch round. Remove and discard waxed paper. Gently press dough onto bottom and up side of 9-inch pie plate; flute edge of crust. Prick bottom of crust with fork.

Step 4

Whisk eggs, buttermilk, COOL WHIP and vanilla in medium bowl until blended. Add sugar and remaining flour; mix well. Pour into crust.

Step 5

Bake 40 to 45 min. or until center is set and top is golden brown. Cool completely.