Ingredients
Equipment
Method
Brown the butter and prepare
- Melt the butter in a medium saucepan over medium heat, swirling frequently; when it foams and the milk solids turn amber with a nutty aroma, remove from heat and pour into a heatproof bowl to cool until warm (under about 130°F).
Make the batter
- Whisk the granulated and brown sugars into the warm brown butter, then whisk in the two eggs, extra yolk, and vanilla until glossy and slightly thickened.
- Sift together the flour, cocoa powder, sifted matcha, baking powder, and salt into a bowl, then fold the dry ingredients into the wet mixture just until combined—do not overmix.
- If using mix-ins, fold in toasted walnuts or swirl in white chocolate now.
Bake and finish
- Spread the batter into a parchment-lined 9×9-inch pan and smooth the top; bake at 325°F for 20–28 minutes until the edges are set, the top is glossy with small cracks, and the center still jiggles slightly.
- Let the brownies cool in the pan on a rack for at least 45 minutes before removing and slicing; chill 20–30 minutes for cleaner cuts if desired.
Notes
Use culinary-grade matcha and sift it to avoid bitter clumps. Measure flour by spooning into the cup and leveling to prevent dryness. Let the pan cool 45 minutes before slicing; chilling for 20–30 minutes yields neater squares. If baking in an 8×8-inch pan, add 3–6 minutes to the bake time.
