2. Lightly spray bottom and sides of 13×9-inch pan with cooking spray.
3. In large bowl, stir cookie mix, pudding mix, brown sugar, melted butter, 1 teaspoon of the vanilla and 1 whole egg until soft dough forms.
4. Press dough into bottom and 1/2 inch up sides of pan.
6. Add remaining whole egg, 3 egg yolks and remaining 1 1/2 teaspoons vanilla; beat until smooth.
7. Spread over crust in pan.
11. Refrigerate about 3 hours or until chilled.