Instructions: Heat oven to 350 degrees; line 9" square baking pan with foil, leaving 2" overhangs. In food processor or blender process cookies to fine crumbs; you should have about 1-1/2 cups. Transfer crumbs to baking pan; press firmly over bottom. Set aside.

In large bowl with electric mixer at high speed, beat cream cheese, sugar, drink powder, flour, eggs, and vanilla until just blended and smooth. Pour over crust in pan; bake 25 minutes until set but still soft in center. Cool completely, in pan, on wire rack; refrigerate, covered, at least 3 hours or overnight.

At serving time, in small microwave bowl combine chocolate chips and shortening; melt on HIGH 1 to 2 minutes. Dip tip of small spoon into chocolate; let drizzle in random pattern over surface of chilled square.

Using foil overhangs as handles, lift square from pan.

Peel foil away from sides of square; cut into 2" squares

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