Modified slightly from Tessa Arias’s recipe at Handle the Heat, here: https://handletheheat.com/chewy-brownies/
Ingredients
- 5 T (71 g) butter
- 1 1/4 c (249 g) brown sugar
- 2 large eggs plus 1 yolk, cold
- 1 t vanilla
- 1/3 c (74 g) oil
- 3/4 c (75 g) cocoa powder
- 1/2 c (63 g) flour
- 1 T cornstarch [optional]
- 1/2 t salt
- 3/4 c chopped walnuts toasted in oven for 7 minutes
- turbinado sugar to sprinkle on top (optional)
Instructions
- Preheat oven to 325°F. Grease an 8×8 inch square metal pan or 9-inch metal cake pan. (Glass pan not recommended, but if using, add 5-10 minutes to bake time.)
- In a microwave-safe bowl, add the butter and sugar. Microwave for about 1 minute, or until the butter is melted. Whisk in the eggs and egg yolk, whisking vigorously for 1 minute. Whisk in the vanilla, then stir in the oil and cocoa powder and salt.
- With a rubber spatula, stir in the flour and cornstarch (if using), then the walnuts.
- Spread the brownie batter into the pan. Bake for 30 minutes, or until the brownies are set and a cake tester inserted into the center has moist crumbs attached. Do not overcook. Let cool completely to solidify before cutting and serving.
- Brownies can be stored in an airtight container at room temperature for up to 3 days. If the cornstarch is used, brownies will be gooey when served warm, chewy when served at room temperature, and fudgy when served chilled. If cornstarch is not used, brownies will be less chooey, more gooey.