1Preheat your oven to 350°F (175°C). Grease an 8x8 inch baking pan and set aside.
In a medium bowl, whisk together the flour, sugar, baking soda, salt, and cocoa powder.
In a separate large bowl, mix together the vegetable oil, buttermilk, egg, red food coloring, vanilla extract, and vinegar until well combined.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Pour the batter into the prepared baking pan and spread it out evenly.
Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
Allow the brownies to cool completely in the pan on a wire rack.
Once cooled, spread the cream cheese frosting evenly over the top of the brownies.
Cut into squares and serve. Enjoy your Red Velvet Brownies!