Name: Apple Crumble Recipe (made in mason jars)
Ingredients: 1 1/2 cups oats; 1 cup all-purpose flour; 1 cup light brown sugar; 2 teaspoons ground cinnamon; 1/4 teaspoon salt; 3/4 cup butter (12 tablespoons, chilled and cut into pieces); 3 lbs Granny Smith apples (about 7 apples, peeled, cored); 3 tablespoons lemon juice; 1/2 cup light brown sugar; 8 pint wide-mouth half- canning jars; Vanilla ice cream (optional, caramel sauce, and/or whipped cream)