Ultimate Apple Pecan Crisp

Name: Ultimate Apple Pecan Crisp
Prep time: 20 min
Cook time: 1 h 15 min
Total time: 1 h 35 min
Cuisine: American, Southern
Ingredients: 2 1/2 lbs apples, peeled, quartered, cored, and sliced to yield about 6 cups (about 6 medium, Granny Smith works well); 2 -3 tablespoons sugar; 1/4 teaspoon ground cinnamon; 1 tablespoon all-purpose flour; 1 cup all-purpose flour; 5 tablespoons brown sugar; 2 tablespoons sugar; 1/2 cup finely chopped nuts (I like pecans); 4 ounces unsalted butter, cut into small pieces and chilled