01 -
Heat your oven to 350°F (175°C). Line a square 8x8-inch pan with parchment paper and leave some overhang for easy lifting later.
02 -
Melt together butter and chocolate chips in a microwave-safe dish or over simmering water, stirring until it's smooth. Whisk in the sugar until blended. Add eggs one by one, mixing well each time, then stir in the vanilla. Gently fold in the cocoa, flour, and salt until just mixed.
03 -
Combine the softened cream cheese and sugar in a second bowl and beat until creamy. Mix in the egg and vanilla just until blended, not overmixed.
04 -
Pour about three-quarters of the brownie mix into the lined pan and spread evenly. Add spoonfuls of the cheesecake batter on top, followed by small drops of the remaining brownie mix.
05 -
Use a skewer or knife to make gentle swirls in the batter, giving a marbled look. Keep the motions light so you don't mix the batters together completely.
06 -
Place the pan in the preheated oven and bake for 25–30 minutes. The edges should be firm, but the center will jiggle just a little. The brownies will set further as they cool.
07 -
Let the brownies cool entirely in their pan before putting them in the fridge for at least 2 hours. Slice them into squares once chilled. For smooth cuts, heat a sharp knife under hot water and dry it between cuts.