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Every year, it seems like we spend an inordinate amount of time researching new zucchini recipes to keep up with our freakishly productive garden patch, but this year, we’re already done. That’s because Martha Stewart just shared her recipe for a double-chocolate zucchini sheet cake with a decadent cream cheese frosting that’s perfect for all of your end-of-summer, beginning-of-fall get-togethers, potlucks, picnics, and barbecues, and we may never want to use zucchini another way again.
Earlier this week, Stewart shared a pic of the decadent go-to on her Instagram. She shared the photo with the caption, reading, “Our chocolate-zucchini cake is just the thing for a summer party. It packs in four whole cups of shredded zucchini for a nutritional boost and plenty of moisture. We love topping it with a tangy cream-cheese frosting and, for an eye-catching finish, a few sugared zucchini blossoms. Tender, chocolatey, and just sweet enough, this summery cake is an all-around winner. Get the recipe at the link in our bio. 📷: @jason_donnelly_photography.”
What we love about this recipe is that, while you can’t taste the zucchini at all, it does serve an important purpose in the recipe. The water in the zucchini helps keep the cake super-moist, and the zucchini also adds a dose of healthy fiber to each square of cake you cut from the pan. We also love that the cake is made in a jelly roll pan, making for easier serving when dining will a crowd.

After grating your zucchini, you’ll want to drain it, and then squeeze the excess moisture out. You can do this by putting the grated zucchini in a square of cheesecloth or a clean kitchen towel, then twisting it into a ball to squeeze out the water. This is what will give the cake the right balance of moisture without being watery.

For the chocolate, Stewart uses Dutch-processed cocoa powder, which gives the cake that signature deep, dark chocolate color. She also adds in some chopped semisweet chocolate, for even more decadence.
Last but not least, you won’t want to leave off the smooth, rich cream cheese frosting. It has just enough tang to cut through all the sweetness. Stewart also decorates her cake with sugared zucchini blossoms, which she says taste like candied pumpkin. If you can get zucchini blossoms from your garden, or the farmer’s market, it’s a fun project to try, and not too complicated — you basically just toss zucchini blossoms with oil and sugar, then slowly bake them at a low temperature until dry.
The end result? A decadent double chocolate cake that your friends and family will beg you to make all summer, and a zucchini recipe you finally won’t get tired of.
Get Stewart’s full recipe for her Chocolate-Zucchini Sheet Cake With Cream-Cheese Frosting HERE!
Before you go, check out the gallery below:
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