In large bowl, stir together Brownie Mixture ingredients until well blended. In another large bowl, stir together Cookie Filling ingredients until dough forms. Spoon and spread 1 measuring teaspoon brownie mixture evenly into bottom of each foil cup. Shape 1 measuring teaspoon cookie filling into a ball; flatten into 1-inch circle. Place on top of brownie mixture in each foil cup. Spoon and spread 1 measuring teaspoon brownie mixture over cookie filling in each cup.