Teresa G.


This recipe is based on a recipe from King Arthur (the flour company, not His Highness, LOL!) I've modified the recipe to our liking and it is fantastic! It is super chocolatey, super moist, and you'd never guess that there is zucchini in it. What a great way to eat our veggies!

Featured Pinch Tips Video

★★★★★ 2 votes
Makes 9"x13" cake
40 Min
40 Min


2 1/2 c
all-purpose flour
1 tsp
baking soda
1/2 tsp
teaspoon baking powder
1/2 tsp
3/4 c
dutch-process baking cocoa
2 tsp
espresso powder
1/2 c
butter, room temperature ( 8 tablespoons)
1 3/4 c
white granulated sugar
1/2 c
vegetable oil
1 tsp
pure vanilla extract
2 large
1/2 c
sour cream
3 c
shredded zucchini (approx. one 10" zucchini)
1 c
"special dark" chocolate chips, divided (or semi-sweet chocolate)
1 can(s)
chocolate fudge frosting


Step 1 Direction Photo

1Preheat oven to 350°F. Lightly grease a 9" x 13" pan.

Step 2 Direction Photo

2In a medium bowl, mix together flour, baking soda, baking powder and salt; set aside.

Step 3 Direction Photo

3In a small bowl, mix together the cocoa and espresso powder; set aside.

4In a large mixing bowl, beat butter until creamy; add sugar; beat until creamy.

Step 5 Direction Photo

5Add oil and vanilla; beat until smooth.

Step 6 Direction Photo

6Add eggs; beat well.

Step 7 Direction Photo

7Stir in 1/3 of the flour mixture; stir in 1/2 the sour cream; stir in 1/2 of remaining flour mixture; stir in rest of sour cream; add remainder of flour mixture and cocoa & espresso powder mixture; stir to mix thoroughly.

Step 8 Direction Photo

8Stir in zucchini and 1/2 cup chocolate chips.

Step 9 Direction Photo

9Pour into prepared pan, smoothing to level batter.

Step 10 Direction Photo

10Bake at 350ºF for 35-40 minutes, until center springs back when lightly touched and cake appears set. (Note: Time is approximate due to type of pan and oven variations.)

Step 11 Direction Photo

11Remove cake from oven, sprinkle fairly evenly with 1/2 cup chocolate chips, and return it to oven for 8-10 minutes, or until toothpick inserted in center comes out almost clean.

Step 12 Direction Photo

12Remove cake from oven; use an off-set spatula or dinner knife to spread the chocolate chips into a smooth glaze. Set pan on a wire rack and let cool completely (about 2 hrs.)

Step 13 Direction Photo

13When cooled, use knife or small off-set spatula to spread frosting evenly over cake.

14Note: You may use your favorite ganache instead of melted chocolate chip glaze and frosting, if preferred.