These Oreo brownies are the ultimate treat - rich, fudgy, and packed with chunks of crunchy Oreos in every bite. A crackly top, gooey centre, and that classic cookies-and-cream flavour make them totally irresistible! They’re so easy to make and perfect for when you need a chocolate fix.
Line your 8" x 8" square tin with baking paper, leaving an overhang to make it easy to lift the brownies out later.
In a heatproof bowl, melt the butter and dark chocolate together over a pan of simmering water (or microwave in 30-second bursts, stirring between each until smooth). Set aside to cool slightly.
In a large mixing bowl, whisk together the caster sugar, light brown sugar, eggs, and vanilla extract until pale and slightly thickened (about 1-2 minutes). This helps create that perfect crackly top!
Pour the melted chocolate mixture into the egg mixture and whisk until combined.
Sift in the flour, cocoa powder, and salt, then gently fold everything together with a spatula until just combined. Be careful not to overmix!
Fold in the chopped Oreos, making sure they’re evenly distributed throughout the batter.
Pour the brownie batter into your prepared tin, smoothing out the top. Scatter the extra Oreo cookie chunks on top for that perfect finishing touch.
Bake for 30-35 minutes, or until the edges are set but the centre still has a slight wobble. A skewer should come out with a few sticky crumbs—this means they're fudgy!
Let the brownies cool COMPLETELY in the tin before slicing (I know, it’s hard to wait!). For extra neat slices, chill them in the fridge for an hour before cutting.