01 -
In a large mixing bowl, combine melted butter, brown sugar, and granulated sugar. Whisk until fully integrated and slightly thickened for a glossy, crinkly brownie top.
02 -
Whisk in eggs, vanilla extract, red food coloring, and white vinegar. Mix until the batter appears glossy and deeply colored.
03 -
Sift cocoa powder, salt, and flour into the wet mixture. Gently fold until just combined, being careful not to overmix for a fudgy texture.
04 -
Pour batter into a parchment-lined 20 cm × 20 cm baking pan. Smooth the surface and bake at 175°C for 30 to 35 minutes until edges are set and the center is slightly soft.
05 -
While brownies cool completely, beat cream cheese, softened butter, vanilla extract, and pinch of salt until smooth. Gradually incorporate powdered sugar, adjusting for desired sweetness and consistency. If using dairy-free cream cheese, mix in cornstarch for structure.
06 -
Spread frosting evenly over cooled brownies. Refrigerate for 30 minutes before slicing for clean edges and enhanced flavor.