How do you make brownies from cake mix?

* 1 box (18.25 ounces) chocolate cake mix

* 1/2 cup sour cream

* 1/4 cup vegetable oil

* 2 eggs

* 1 cup semisweet chocolate chips (optional)

Instructions

1. Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking pan.

2. In a large bowl, whisk together the cake mix, sour cream, oil, and eggs until smooth. Stir in the chocolate chips, if desired.

3. Pour the batter into the prepared pan and bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.

4. Let the brownies cool completely before cutting and serving.

Tips

* For a richer flavor, use chocolate fudge cake mix instead of regular chocolate cake mix.

* Add 1/2 cup of chopped nuts to the batter for added texture.

* If you don't have sour cream, you can substitute with plain yogurt or buttermilk.

* For a gooey center, bake the brownies for a few minutes less.

* Brownies are best when stored at room temperature. They can be refrigerated for up to 1 week or frozen for up to 2 months.