Bring 2 cups of water to a boil, then remove from the heat. Stir in the gelatin until completely dissolved, 1 to 2 minutes. Add 1 cup cold water, the cranberry sauce and pineapple. Mix well, ensuring you break apart any large chunks of the cranberry sauce. Pour into a 9-by-13-inch pan. Cover and place in the refrigerator until firm, 3 1/2 to 4 hours.
Beat together the cream cheese and powdered sugar with a hand mixer until smooth, about 1 minute. Add the milk and mix until completely combined. The frosting should be thick but still pourable. Carefully spread the cream cheese frosting in a thin layer over the cranberry sauce. Zest the orange directly over the frosting. Serve up in individual squares.
This recipe has been updated and may differ from what was originally published or broadcast.