How to make German Chocolate Cupcakes

How to make German Chocolate Cupcakes with a surprise center.

What could be better than German chocolate cupcakes? Filling them with a delicious bourbon chocolate ganache!

For the cupcakes:
1 1/3 cups all-purpose flour
1/4 teaspoon baking soda
2 teaspoons baking powder
3/4 cup unsweetened cocoa powder
1/8 teaspoon salt
3 tablespoons butter, softened
1 1/2 cups white sugar
2 eggs
3/4 teaspoon vanilla extract
1 cup milk
1/3 cup sour cream

For the Frosting:
3 large egg yolks
1 can (12 ounces) evaporated milk
1 1/4 cups packed light-brown sugar
1 1/2 sticks (12 tablespoons) unsalted butter, cut into small pieces and brought to room temperature
1 teaspoon pure vanilla extract
1/4 teaspoon salt
2 2/3 cups (7 ounces) sweetened flaked coconut
1 1/2 cups (6 ounces) pecans, toasted and coarsely chopped
12 candied pecans for toppers

For the filling:

1/2 cup semi sweet chocolate, chopped.
3/4 cup cream
1/3 cup bourbon