A brownie for every mood — rich, nutty, creamy, and irresistibly chocolatey.

Instructions
Preheat oven: to 350°F (175°C). Line an 8-inch square pan with parchment paper and lightly grease.
Make the brownie base: In a bowl, whisk melted butter, sugar, eggs, and vanilla. Stir in cocoa powder, flour, salt, and baking powder until smooth. Spread most of the batter into the pan, reserving about ¼ cup for swirling.
Prepare cheesecake layer: Beat cream cheese, sugar, egg yolk, and vanilla until smooth and creamy. Spread evenly over brownie layer.
Add swirl: Drop small spoonfuls of the reserved brownie batter on top, then swirl with a knife or skewer for a marbled effect.
Bake: for 35–40 minutes, or until the center is set but still slightly fudgy.
Cool & slice: Let brownies cool completely before cutting into squares. Chill for a firmer texture.

2. ☕️ Mocha Brownies

For the Brownies:
½ cup (1 stick) unsalted butter, melted
1 cup granulated sugar
2 large eggs
1 tsp vanilla extract
⅓ cup unsweetened cocoa powder
2 tsp instant coffee or espresso powder (adjust to taste)
½ cup all-purpose flour
¼ tsp salt
¼ tsp baking powder

Optional Add-ins:
½ cup chocolate chips
¼ cup chopped walnuts or pecans

For Mocha Glaze (optional):
½ cup powdered sugar
1 tbsp cocoa powder
1 tsp instant coffee
2–3 tsp milk or brewed coffee