Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Line an 8x8-inch pan with parchment paper and lightly grease.
- Brown the butter over medium heat until golden and nutty, about 4–5 minutes. Pour into a heatproof bowl.
- Add chopped white chocolate to the hot butter and stir until completely smooth. Let cool slightly.
- Whisk in granulated sugar and brown sugar until combined. Add eggs, egg yolk, and vanilla. Whisk vigorously until glossy and thickened.
- Add green gel food coloring gradually, folding until a deep emerald shade is reached.
- Fold in flour and salt until just combined. Do not overmix.
- Spread batter evenly in the pan and bake 24–28 minutes until a toothpick shows moist fudgy crumbs. Cool completely.
- Beat cream cheese and butter until smooth and fluffy. Add powdered sugar, vanilla, salt, and cream. Beat until light and spreadable.
- Spread frosting evenly over chilled brownies. Decorate with sprinkles and flaky sea salt if using.
- Chill for at least 30 minutes, then slice into 16 squares using a clean, sharp knife.
Notes
Use gel food coloring for the most vibrant emerald shade without thinning the batter. Do not overbake—remove when a toothpick shows moist fudgy crumbs. Cool completely before frosting and chill before slicing for clean edges.
