Cake:

1. 1. Pre-heat oven to 350°F.
   2. Grease and flour 2 – 9 inch round cake pans.
   3. Mix milk and vinegar. Let set to sour 15 minutes.
   4. Mix sugar, flour, cocoa powder, salt, baking powder, and baking soda.
   5. Add coffee, milk, oil, eggs, and vanilla.
   6. Divide between both pans and bake until toothpick inserted in center comes out clean. Approximately 30 minutes.
   7. Cool 10 minutes in pan then take out of pan to cool rest of way.

Chocolate Mousse

1. 1. Beat heavy cream and powdered sugar until peaks form.
   2. In double boiler, melt chocolate.
   3. Take off heat and fold in half the whipped cream.
   4. Add rest of whipped cream and fold in until completely incorporated.
   5. Refrigerate until cake is completely cooled.
   6. Top one cake with 3/4 the chocolate mousse.
   7. Place second layer on top and smooth remaining mousse over cake top.

Chocolate Ganache

1. 1. Heat cream until it simmers.
   2. Pour over chopped bittersweet chocolate.
   3. Whisk together until completely melted.
   4. Spoon over top of cake and spread over top and sides, completely covering cake.
   5. Refrigerate until firm.