goober cake

Name: goober cake
Ingredients: * 3 cup cake flour (12 ounce) (i used all purpose); * 1 tablespoon baking powder; * 1 teaspoon table salt; * 1 3/4 cup brown sugar (12.75 ounce); * 1/2 cup butter (5 ounce); * 1/2 cup canola oil; * 1 tablespoon vanilla extract; * 1/2 cup crunchy natural peanut butter; * 4 egg; * 1 1/4 cup milk (room temperature); for the ganache; * 1 cup semi sweet chocolate; * 1 cup heavy cream; for the frosting; * 1/2 cup chunky natural peanut butter; * 6 tablespoon unsalted butter (3 ounce), room temperature and cut; into small piece; * 1 teaspoon vanilla extract; * 1/2 heavy cream; * 2.5 cup powdered sugar (10 ounce)