One Whoopie of a Cookie! Head up whoopie pie fans, have we got a treat for you. Our H-E-B Whoopie of a Cookie Kit comes with ready to bake cookies and a pouch of creamy filling that makes for a fun weekend afternoon activity with the kids. Choose from Molasses Cookie Dough with Sweet Cream Filling or Double Chocolate Cookie Dough with Marshmallow Buttercream Filling. Look for them in the refrigerated dairy section.