1 stick unsalted butter, cut into pieces
4 ounce unsweetened chocolate, chopped
1 cup sugar
2 large eggs
1/2 teaspoon pure vanilla extract
2/3 cup all-purpose flour
1/2 cup semi sweet chocolate chips
Cheesecake Topping:
8 ounces cream cheese, well softened
1/3 cup sugar
1 large egg yolk
1/4 teaspoon pure vanilla extract
1stick unsalted butter, cut into pieces
4ounceunsweetened chocolate, chopped
1cupsugar
2large eggs
1/2teaspoonpure vanilla extract
2/3cupall-purpose flour
1/2cupsemi sweet chocolate chips
8ouncescream cheese, well softened
1/3cupsugar
1large egg yolk
1/4teaspoonpure vanilla extract
Instructions
Put oven rack in middle position and preheat oven to 350°F. Line the inside of an 8-inch square baking pan with aluminum foil allowing excess to extend beyond the edges of the pan. Lightly grease foil with butter or nonstick cooking spray.
To make the brownies, in a medium saucepan heat butter and 4 ounces of chocolate over low heat, whisking occasionally, just until melted and smooth. Remove from heat and stir in sugar, eggs, vanilla, and a pinch of salt until well combined. Whisk in flour and chocolate chips until just combined and spread evenly in baking pan.
To make the cheesecake batter, in a medium bowl, beat together cream cheese, sugar, egg yolk, and vanilla extract until smooth.
Distribute the cheesecake mixture in 8 dollops over brownie batter. Swirl in with a knife or spatula.
Bake until edges are slightly puffed and center is just set, about 35 minutes. Let cool completely in pan on a cooling rack before lifting out the foil to remove the brownies.