1
: Preheat oven to 350°F (180°C). Combine cookie crumbs, butter and 1/4 cup (50 ml) sugar in bowl; press into bottom of 13 x 9-inch (3.5 L) baking dish. Bake 10 minutes or until firm; let cool to room temperature.
2
: Reduce oven temperature to 325°F (160°C). Beat remaining sugar, cream cheese, eggs and flour in large bowl until smooth. Gradually fold in evaporated milk and orange rind. Combine cocoa with hot water until dissolved; stir into mixture. Pour into prepared pan. Bake 40 to 45 minutes or until set.