Preheat oven to 350°F Grease and flour a 10-inch bundt pan.
Combine the flour, brown sugar, graham cracker crumbs, baking powder, baking soda, salt, cinnamon, softened light butter, applesauce, orange juice and the eggs. Beat until smooth about 2 to 3 minutes. Stir in the walnuts and pour the batter into the prepared pan.
Bake at 350 degrees F for 45 to 50 minutes or until a toothpick inserted in the center comes out clean. Let cake stand in pan for 20 minutes. Invert cake onto a serving plate and drizzle with glaze.
Directions for glaze: Mix confectioners sugar, vanilla and 1 Tbls. of orange juice. Mix more orange juice until the glaze is smooth and thin enough to drizzle over cake. Stir in orange zest.