Chocolate Walnut-filled Cake

Ingredients

 * cake:
 * 2 cup cake flour
 * 1/2 cup unsweetened cocoa
 * 3 tbsp granualted fructose or other
 * Sugar replacement
 * 1 tbsp baking powder
 * 1 1/4 cup milk
 * 1/4 cup soft margerine
 * 2 eggs
 * filling:
 * 1/2 cup flour
 * 1/3 cup walnuts very finely chopped
 * 1/3 cup milk
 * 1 tsp granulated fructose or other
 * Sugar replacement
 * 1 tsp baking powder
 * 1 tsp vanilla extract

Directions
Preheat oven to 350.grease and flour a 3 quart size tube pan. For the cake: combine dry ingredients and sift into a bowl. Add remaining ingredients and beat until smoot and creamy.pour into prepared pan. To make the filling: combine all ingredients in a bowl mixing with a fork until well blended. Sppon in a ring over center of chocolate layer being careful not to touch sides of pan with filling mixture. Bake for 35 minute or until tester comes out clean. Cool in pan for 20-25 minutes,invert onto plate or rack and let cool completely. Frost with a glaze if desired re