HOW DO YOU DOUBLE A RECIPE RECIPES

Steps:

• In a large mixing bowl, cream butter and sugar with an electric mixer until light and fluffy. Gradually beat in cocoa and baking powder. Beat for 2 minutes. Beat in the eggs one at a time. Stir in flour by hand. Mix in white chocolate and chocolate chips. Cover dough, and chill for about 10 minutes.
• Preheat oven to 375 degrees F (190 degrees C). Divide dough into two parts, and roll each part into a 9 inch long log. Place logs on lightly greased cookie sheet, about 4 inches apart. Flatten slightly.
• Bake for 20 to 25 minutes, or until toothpick inserted in center comes out clean. Cool on cookie sheet for 5 minutes, then carefully transfer to a wire rack to cool for one hour.
• Cut each loaf into 1/2 inch wide diagonal slices. Place slices on an ungreased cookie sheet, and bake at 325 degrees F ( 165 degrees C) for 9 minutes. Turn cookies over, and bake for 7 to 9 minutes. Cool completely, then store in an airtight container.

Steps:

• Combine sugar, cornstarch, and salt in a 2-quart saucepan. Stir in milk gradually. Add chocolate chips and unsweetened chocolate. Place over medium heat, stirring constantly, until mixture thickens and boils. Boil and stir 1 minute.
• Place egg yolks in a medium heatproof bowl. Gradually pour half of chocolate mixture into egg yolks, whisking constantly.
• Whisk egg yolk mixture back into mixture in saucepan. Place over medium heat and bring back to a boil, stirring constantly. Boil and stir 1 minute. Remove from heat; stir in vanilla extract.
• Pour mixture into baked pie shell. Press a layer of plastic wrap onto filling. Refrigerate at least 4 hours but no longer than 48 hours. Remove plastic wrap before serving and top with whipped topping.