White Chocolate Green Tea Brownies

Name: White Chocolate Green Tea Brownies
Ingredients: 1 2/3 cups chopped white chocolate (10 ounces or 285 g (see note below about quality)); 3/4 cup unsalted butter at room temperature (1 1/2 sticks, 6 ounces or 170 g); 3/4 cup granulated white sugar (150 g); 3/4 cup packed dark brown sugar (165 g); 2 teaspoon vanilla extract; 1 teaspoon baking powder; 3/4 teaspoon kosher salt; 3 large eggs; 1/2 cup extra virgin olive oil; 2 1/4 cup all-purpose flour (315 g); 1 tablespoon matcha green tea powder ((see note below about quality))