4ozbittersweet or semisweet chocolate, finely chopped about ½ cup
1large egg yolk
½cupall-purpose flourspooned and leveled
½cupunsweetened cocoa powder
¾cupsemi-sweet chocolate chips
Preheat oven to 350°. Line a 9x9 baking pan with parchment paper and set aside.
In a microwave-safe bowl, heat butter and 4oz of chocolate for 30 seconds. Mix and then heat in 10-second intervals (mixing in between) until the mixture is smooth and melted together. Once melted, add to sugar in a large bowl and mix until combined.
In a separate bowl, whisk the eggs + extra egg yolk until you see little bubbles form on top. Add this to the butter/sugar mixture. Add in vanilla extract and mix until everything is smooth.
Add the dry ingredients- flour, cocoa powder, and salt. Mix until everything is combined and then stir in the chocolate chips.
Bake in the oven for 30-32 minutes, until the center of your brownies are set or a toothpick/knife comes out of the center clean. Let cool for about 20-30 minutes and then cut.
Optional: add toppings like melted chocolate and flaky sea salt!