Apple Slab Pie

Heat oven to 425 °F. Remove pie crusts from pouches. On lightly floured surface, unroll and stack crusts one on top of the other. Roll to 17x12-inch rectangle. Fit crust into ungreased 15x10x1-inch pan, pressing into corners. Fold extra crust even with edges of pan. In large bowl, mix 1/2 cup sugar, 3 tablespoons flour and apple pie spice. Stir in apples to coat. Spoon apple mixture into crust-lined pan. In medium bowl, mix Streusel ingredients, cutting in butter with fork or pastry blender until crumbly. Sprinkle evenly over apples. Bake 33 to 38 minutes or until crust is golden brown, filling is bubbling and streusel is browned. Cool on cooling rack 45 minutes before serving.