Chocolate Layer:
1/2 cup unsalted butter
4 oz 70% cocoa dark chocolatechopped
1/2 cup sugar
1 tsp vanilla extract
2 large eggs
1/2 cup flour
pinch of salt
Cheesecake Layer:
8 oz cream cheeseroom temperature
1/4 cup sugar
1/2 tsp vanilla extract
1 large eggroom temperature