Chocolate Fudge Brownie Cake

Chocolate Fudge Brownie Cake
Ingredients:
For the Brownie Cake:
1 cup unsalted butter
2 cups granulated sugar
4 large eggs
1 teaspoon vanilla extract
1 cup all-purpose flour
1 cup unsweetened cocoa powder
½ teaspoon salt
1 teaspoon baking powder
1 cup chocolate chips (semi-sweet or dark)
For the Ganache Topping:
1 cup heavy cream
8 ounces semi-sweet chocolate, chopped