topping |
1/2 cup all-purpose flour |
1/4 cup white sugar |
1/4 cup brown sugar |
1/2 teaspoon cinnamon |
1/4 teaspoons fresh or ground nutmeg |
1/8 teaspoon salt |
6 tablespoons unsalted butter, cut into pieces |
1/3 cup old-fashioned rolled oats |
1/3 cup chopped walnuts or pecans |
filling |
2 1/2 pounds (6 cups) granny smith or other tart apple, peeled, cored and cut into 1 chunks. |
1 cup fresh berries, optional and your choice |
juice of 1/2 lemon |
1 teaspoon lemon zest |
3 tablespoons white sugar |