You are here: Home » Recipes » California Walnut Streusel Apple Pie California Walnut Streusel Apple Pie Recipe by California Walnut Board Yield 6-8 servings Prep 30 mins Cook 60 mins This walnut-apple pie has a streusel topping that makes this dessert extraordinary. Serve alone or accompanied with a scoop of vanilla ice cream, custard or a sliver of aged cheddar. PrintEmail Ingredients Streusel topping1 cup old fashioned oats1 cup roughly chopped California walnuts1/4 cup brown sugar2 tablespoons all-purpose flour1 teaspoon each ground cinnamon and ginger1/2 cup butter, meltedFilling8 cups thinly sliced apples (Golden Delicious or Northern Spy)1/2 cup granulated sugar2 tablespoons lemon juice1 teaspoon each ground cinnamon and ginger1 -- 9-inch (2.5L) deep dish prepared pie crust Instructions In bowl, use a fork to mix together oats, walnuts, brown sugar, flour, cinnamon and ginger. Drizzle with butter and combine to form a coarse crumb mixture. Set aside. In bowl, toss apples with sugar, lemon juice, cinnamon and ginger. Arrange apples in prepared pie crust. Sprinkle walnut streusel over top, completely covering the apples. Bake pie on a baking sheet, covered loosely with foil in centre of a 375F (190C) oven for 50 minutes. Remove foil and bake until streusel is golden and apples are tender, about 10 minutes more. Let sit 15 minutes before serving warm.