All Chocolate Boston Creme Pie

Cake:
1 c. flour
1 c. white sugar
6 Tbsp butter, softened
1 egg
1/3 c. cocoa powder
1/2 tsp baking soda
1 c. milk
1 tsp vanilla
Filling:
1 1/2 c. light cream
1/4 c. cocoa powder
1 1/2 c. white sugar
2 Tbsp corn startch
1 tsp vanilla
1 Tbsp butter
Chocolate Glaze:
4 oz. bittersweet or dark chocolate, finely chopped
1 1/2 tsp light corn syrup
1/2 c. heavy cream
Directions:
heat oven to 350 degrees and grease and flour 9 inch round pan. Stir together flour, sugar, cocoa, baking soda in large bowl. Add butter, milk, egg & vanilla. Beat on low speed until all ing. are moistened. Bean on med. for 2 min. pour batter into pan.
Bake 30-35 min. cool 10 min, then remove from pan onto wire rack. Cool completly. Prepare filling. Cut cake into 2 thin layers. Spread filling, replace other layer.
Prepare Filling:
Stir together sugar, cocoa & corn starch into med. bowl. gradually stir in light cream. Cook over med. heat, stirring constantly, until mixture thickens and begins to boil. Boil 1 min, stirring constantly. Remove from heat. Stir in butter and vanilla. cool completely. Glaze cake.
Glaze:
mix chocolate & corn syrup in small bowl. In saucepan, bring cream to boil. Pour cream over chocolate mixture and stir until smooth. Cool slightly before glazing cake.