Instructions: CRUST: Heat oven to 325 degrees. Mix crumbs; sugar and yogurt; press onto bottom of 9-inch springform pan. Bake 10 minutes.

FILLING: Beat cream cheese, sugar and cocoa at medium speed with electric mixer until well blended. Add egg whites, one at a time, mixing well after each addition. Blend in milk and vanilla; pour over crust.

Bake 30 to 35 minutes or until set. loosen cake from rim of pan; cool before removing rim of pan. Refrigerate.

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