Yield: 2 (8 or 9-inch) pies; 12 servings Streusel Topping 1 cup (2 sticks) unsalted butter, softened 1-1/2 cups all-purpose flour 1-1/2 cups firmly packed brown sugar 1-1/2 cups coarsely chopped walnuts Pie Shells 2 (8 or 9-inch) unbaked pie Read More …