Preparation / Directions:
Heat oven to 350 degrees F. Grease and flour 9-inch round cake pan. Measure all cake ingredients into a large mixer bowl. Blend 30 seconds on low speed, scraping bowl constantly. Beat 3 minutes at high speed, scraping bowl occasionally. Pour into pan. Bake 35-40 minutes. Cool. While cake is baking, prepare cream filling: Blend sugar, cornstarch and salt in medium saucepan. Combine milk and egg yolks; gradually stir in to sugar mixture. Cook over medium heat, stirring constantly until mixture thickens and boils. Boil and stir 1 minute. Remove from heat; stir in vanilla. Cool to room temperature. Once cake has cooled, split cake into 2 thin layers. Fill layer between the cakes with cream filling. Prepare frosting: Melt butter in saucepan. Blend in sugar, vanilla and melted chocolate. Stir in milk 1 Tbsp at a time until mixture becomes glaze- like. Spread over top of cake.