Apple Crisp with ginger

4 cups granny smith apples , peeled and sliced 1 tablespoon lemon juice 1 teaspoon lemon juice 1/2 cup all-purpose flour 1 1/4 cups old fashioned oats 2/3 cup[...]

6 apples , peeled and cored and thinly sliced (ideally a mix of varieties, like Granny Smith, Pink Lady, and McIntosh) 1 lemon, zest of lemon juice (from 1/2[...]