3/4 c. butter, softened
2 c. sugar
1 tsp. vanilla
2 eggs
2 c. sifted flour
1 tsp. baking powder
1/4 tsp. salt
1 (8 oz.) carton commercial sour cream

in small bowl, combine all filling ingredients and set aside. In large bowl, cream butter, sugar, and vanilla until light and fluffy. Add eggs, one at a time, beating well after each. Sift together flour, baking powder, and salt. Add to creamed mixture with sour cream and blend until moistened. Beat 3 minutes at medium speed. Spoon 1/2 batter into greased and lightly floured 12 cup Bundt pan.

FILLING:

1 (6 oz.) pkg. semi sweet chocolate chips
1/2 c. chopped nuts
1/3 c. sweetened condensed milk
2 tbsp. grated orange peel

Mix together and spoon Filling in center of batter, not touching sides of pan. Spoon remaining batter into pan to cover Filling. Bake at 350 degrees for 65 to 80 minutes or until tests done. Cool in pan 10 to 15 minutes; turn out on wire rack or serving plate to complete cooling. Top with a thin Orange Glaze.