Mix 1/2 cup sugar, 2 Tbsp flour, and the cinnamon together and toss with apples. Heap into the pie shell. Combine butter, 1/2 cup sugar, and 1/2 cup flour to make a thin paste. Spread paste over apples, coating evenly. Place pie in a brown paper bag and close securely with paper clips or staples.
Place pie in center of the oven rack, taking care that the paper bag does not come in contact with any interior oven surface. Bake in pre-heated 400 degree oven for 1 hour. when pie is done, cut away the bag.
Per Serving (excluding unknown items): 335 Calories; 18g Fat (46.8% calories from fat); 2g Protein; 43g Carbohydrate; 1g Dietary Fiber; 31mg Cholesterol; 263mg Sodium. Exchanges: 1 Grain(Starch); 3 1/2 Fat; 1 1/2 Other Carbohydrates.