Butter an 8" square pan and preheat your oven to 180°C.

In a saucepan set over low heat, melt butter and chocolate. Let it cool.

Combine sugar and eggs (or Greek yogurt). Add the cooled chocolate mixture.

Add in the flour, cocoa powder and baking powder. Fold in the choco chips.

Also sprinkles some some choco chips on the top.

Transfer the batter to the baking dish. Bake at 180°C for 30 minutes-35 minutes. Let the brownies cool completely before you try and cut them.