1Mix 1/2 cup sugar, the milk, salt and egg yolks in 1-quart saucepan. Cook over medium heat, stirring constantly, just to boiling (do not boil). Refrigerate uncovered in chilled bowl 1 hour to 1 hour 30 minutes or until room temperature.
2Stir whipping cream, vanilla and 3 or 4 drops food color into milk mixture.
3Place half of the apples, 1/2 cup sugar and the lemon juice in food processor or blender. Cover and process, using quick on-and-off motions, until coarsely chopped. Add remaining apples. Cover and process until finely chopped but not mashed.
4Stir apple mixture into milk mixture. Pour into 2-quart ice-cream freezer. Freeze according to manufacturer's directions.