Best Ever Chewy Brownies

Ingredients

• 5 tablespoons (71 grams) unsalted butter
• 1 1/4 cups (249 grams) granulated sugar
• 2 large eggs plus 1 egg yolk, (cold)
• 1 teaspoon vanilla extract
• 1/3 cup (74 grams) neutral oil ((like vegetable or avocado))
• 3/4 cup (75 grams) cocoa powder*
• 1/2 cup (63 grams) all-purpose flour, (measured correctly)
• 1 tablespoon cornstarch
• 1/4 teaspoon fine sea salt
• 3/4 cup (128 grams) semisweet chocolate chips**

Steps

1. 1

   Preheat the oven to 325°F. Line an 8 by 8-inch light-colored metal pan*** with foil or parchment paper and spray with nonstick cooking spray.

2. 2

   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. This helps produce a shiny crust on top. Whisk in the vanilla, then stir in the oil and cocoa powder.

3. 3

   With a rubber spatula, stir in the flour, cornstarch, and salt until combined. Stir in the chocolate chips.

4. 4

   Spread the brownie batter evenly into the prepared pan. Place in the oven and 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.

5. 5

   Brownies can be stored in an airtight container at room temperature for up to 3 days. Brownies will be gooey when served warm, chewy when served at room temperature, and fudgy when served chilled.