Mix first five ingredients. Beat 5 minutes on medium speed. Mixture will be very thick. Combine the filling ingredients. In greased and floured Bundt pan, layer from bottom to top 1/2 of batter, 1/2 of filling, rest of batter and rest of filling on top. Place cake in a cold oven and set at 350. Bake 1 hour and test with toothpick until it comes out clean.
I sometimes put a little of the filling on the bottom of the pan (it gives it a nice look to the top) and the rest in the middle of the cake.