Apple Pie Filling

1/2 cup granulated sugar, plus 1 teaspoon
1/4 cup packed brown sugar
1/4 tsp table salt
1 tablespoon lemon juice
1/2 tsp grated lemon juice
1/8 tsp cinnamon
5 pounds tart apples
1 egg white, beaten lightly

Mix 1/2 cup granulated sugar, brown sugar, salt, zest, and cinnamon in large bowl; add apples and toss to combine. Transfer apples to dutch oven (do not wash bowl) and cook, covered, over meduim heat, stirring frequently, until apples are tender when poked with fork bit still hold their shape, 15 to 20 min. (apples and juices should gently simmer during cooking.) Transfer apples and juices to rimmed baking sheet and cool to room temperature, about 30 minutes.