Coffee Cake

Preheat oven to 350°. Grease a 9x13 inch baking pan, or a 10 inch Bundt cake pan. In a medium bowl, stir together the cake mix and pudding mix. Add the eggs, oil, and water and mix until well blended. In another bowl, stir together the brown sugar, cinnamon, and nuts. Pour half of the batter into the pan, spread evenly. Sprinkle with half the brown sugar mixture. Cover with the rest of the batter and sprinkle with the rest of the brown sugar mixture. Bake for 20 minutes in the preheated oven, then turn the oven down to 325° and bake for an additional 35 to 40 minutes.