For the Green Apple Ice Quarter apples and juice them through a fruit juicer with peels on (this helps keep the color of the ice a nice bright green). Add simple syrup and lemon juice to taste. Pour into a shallow pan or a glass baking dish and place in the freezer. After 30-40 minutes, scrape the pan to break up the frozen bits and create slush. Do this again after another 30-40 minutes, then put the pan in the freezer until you’re ready to serve.