Ingredients
Equipment
Method
- Begin by preheating your oven to 350°F (175°C). Line baking sheets with parchment paper or silicone baking mats to prevent sticking and ensure easy cleanup. This is a crucial step for perfectly shaped cookies.
- In a large mixing bowl, combine the eggs, vegetable oil (or melted butter), and vanilla extract (if using). Whisk these ingredients together until they are well incorporated and slightly frothy. This forms the smooth base for your cookie dough.2 large eggs, 1/2 cup vegetable oil, 1 teaspoon vanilla extract
- Gradually add the entire box of brownie mix to the wet ingredients. Stir with a spatula or wooden spoon until just combined. Be careful not to overmix at this stage; a few streaks of dry mix are acceptable. Overmixing can lead to tough cookies.1 (18.3-ounce) box brownie mix
- Gently fold in the chocolate chips and chopped nuts (if using) into the cookie dough. Distribute them evenly throughout the mixture for bursts of flavor and texture in every bite.1 cup chocolate chips, 1/2 cup chopped nuts
- Drop rounded tablespoons of cookie dough onto the prepared baking sheets, spacing them about 2 inches apart. You can use a cookie scoop for consistent size and shape, or simply roll the dough into balls with your hands.
- Bake for 8-12 minutes, or until the edges of the cookies are set and slightly firm, and the centers still look a little soft and fudgy. The exact baking time will depend on your oven and the size of your cookies. It's better to slightly underbake for a chewier cookie.
- Allow the cookies to cool on the baking sheets for about 5 minutes before transferring them to a wire rack to cool completely. This resting period is important for them to set fully and achieve that desirable chewy texture.
Notes
Store in an airtight container for up to 3-4 days at room temperature. Refrigerate for up to a week. Freeze dough balls for up to 3 months.