¾cupunsweetened cocoa powder, natural or Dutch(64 grams)
2cupsgranulated sugar(390 grams)
¼teaspoonkosher salt or table salt
¼teaspoonbaking powder
1teaspoonespresso powder or coffee extract
3largeeggsroom temperature
8tablespoonsunsalted butter, melted and cooled slightly(114 grams)
¼cupvegetable oil(50 grams)
2teaspoonsvanilla extract
½cupbittersweet chocolate chips or chopped chocolateoptional
Instructions
Preheat oven to 375 degrees F. Line a 9x12 or 9x13 inch pan with foil and grease the foil or just grease the pan. For thicker brownies, use a 9-inch square pan and preheat to 350 degrees F.
Stir the flour, cocoa powder, sugar, salt, baking powder and espresso powder (if using) together in a large mixing bowl.
Add the eggs, butter, oil and vanilla and beat on low speed or by hand with a heavy duty scraper (the batter will be thick) just until well blended. Stir in chocolate chips or chocolate pieces if using.
Bake at 375 degrees F for about 25 minutes for the 9x13 inch pan or up to 32 to 40 at 350F if using a 9-inch square pan.
Let cool completely, then lift from the pan and serve. If desired, chill before serving.
Notes
This batter is adapted from a back-of-the-bag recipe from King Arthur flour. King Arthur makes the brownies in a 9x13 inch pan and uses a baking temperature of 375F. I like my brownies a bit thicker, so I decreased the pan size to a 9 inch square, reduced the temp by 25 degrees and increased the baking time to about 40 minutes. Brownies are done when a meat thermometer inserted registers 212.