Step 1

Preheat oven to 350°F and prepare a 9x13 pan with butter (or use baking spray) and line with parchment paper. (Allow parchment paper to go up the sides for easy removal.)

Step 2

In a large bowl combine oil, sugar, and vanilla until fully incorporated.

Step 3

Add flour, cocoa, baking soda, and salt. Mix until combined. Batter will be very dry.

Step 4

Fold in zucchini by hand. Allow batter to rest for 5 minutes.

Step 5

Add in chocolate chunks and stir again. Batter should appear more wet. (if not, let it rest for 5 more minutes and stir again)

Step 6

Spread brownie mixture into the pan and bake for 25-35 minutes. Brownies are done with an inserted toothpick is removed with crumbs. There should not be wet batter on the toothpick.