Step 1

Preheat oven to 350°. In a large bowl, cream butter and sugars until light and fluffy, 5-7 minutes. Beat in egg and vanilla. Combine the flour, baking soda and salt; gradually add to creamed mixture and mix well. Stir in the oats, cornflakes and coconut.

Step 2

Shape dough into 1-in. balls and place 2 in. apart on greased baking sheets. Flatten with a glass dipped lightly in flour. Bake for 8-10 minutes or until lightly browned. Remove to wire racks to cool.

Step 3

For filling, beat cream cheese and confectioners' sugar until smooth. Beat in chocolate. Spread about 1 tablespoon on half the cookies and top each with another cookie. Store in refrigerator.