Step 1

Beat together all ingredients until smooth, then spread evenly into the bottom of a lightly greased and parchment paper lined 9×9 inch baking pan.

Step 2

Mix together the 3 ingredients until completely blended then drop by heaping teaspoonfuls onto the cake batter layer. Spread out carefully.

Step 3

Bake at 350 degrees F for 25 -30 minutes. Cool completely before adding the chocolate frosting on top.

Step 4

Beat together the icing sugar, cocoa, vanilla butter and a little of the milk.

Step 5

Add only enough milk to bring the frosting to a smooth but spreadable consistency. A frosting that is a bit on the thick consistency side works best here.

Step 6

Spread on the cooled cookies and cut into squares or bars.