Preheat your oven to 335°F and prepare a 9-inch pan.
In a heatproof bowl, mix together the butter, sugar, and cocoa powder. Place the bowl over a double boiler and whisk until the mixture becomes glossy, and the sugar dissolves (about 2-3 minutes).
Remove the bowl from heat and let it cool for 3 minutes. Then, add the eggs one at a time, whisking until combined.
Sift in the dry ingredients and gently fold them in.
Add the red food coloring and mix until combined.
Finally, fold in the chopped dark and white chocolate.
Transfer the batter to the prepared pan and bake for 18-19 minutes.
Let the brownies rest at room temperature for at least 15 minutes before digging in!
Enjoy these delightful Red Velvet Brownies with your loved ones!