Peel and core the apples and slice into 1/2-inch thick wedges. Toss apples with 1/4 cup of the sugar, place in a colander set over a large bowl, and drain for 1 1/2 hours.
Transfer the drained liquid to a small saucepan, place over medium heat, and cook until it is reduced down to 2 tablespoons, then set aside to cool.
Toss the apples with the remaining 1/4 cup sugar, 2 tsp lemon juice, and 1/2 tsp cinnamon.