3 pounds tart apples
2 tablespoons lemon juice
1/2 cup light brown sugar, packed
1/2 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg
1/3 cup all-purpose flour
1/3 cup granulated sugar
1/3 cup rolled oats
4 tablespoons cold butter (1/2 stick)
1/2 cup chopped walnuts or pecans
Peel, core and chop the apples; toss in a bowl with lemon juice. In a separate bowl, combine the brown sugar, cinnamon, and nutmeg; add to the apples and toss to combine.
In another bowl combine flour, sugar and oats. Cut butter into 8 small pieces, and cut butter into flour with a pastry blender or two forks until mixture is crumbly. Stir in the chopped nuts.
Butter a 9-inch square baking dish. Spread apple mixture in bottom of baking dish then sprinkle with flour mixture. Bake at 375° for 30 to 45 minutes, or until apples are tender and topping is lightly browned.
Serve warm or at room temperature, with vanilla ice cream or a little heavy cream, if desired.