Zucchini Sheet Cake

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Total Time 40 minutes

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Zucchini Sheet Cake is an unexpected twist on a classic that combines the goodness of zucchini with the sweetness of a moist, spiced sheet cake! Grated zucchini adds moisture and subtle flavor, while the creamy frosting provides the perfect balance of sweetness!

More zucchini recipes right this way! You’ll love White Chicken Enchilada Stuffed Zucchini Boats, Zucchini Bread Muffins, Chocolate Zucchini Cake, and Taco Stuffed Zucchini Boats.

zucchini sheet cake slices

Why This Recipe Works

No Fuss: This zucchini sheet cake is the definition of a no fuss dessert. It is probably the easiest cake you will ever make! Simply mix the dry ingredients with the wet ingredients, bake and voila! You’ll have an absolutely delicious zucchini cake that you can eat at any time of the day. Seriously, this cake would be just as good in the morning as it is for dessert after dinner!

Veggie Cake: I know that having veggies in a cake may sound odd, but stick with me here. The zucchini adds moisture and nutrients to this cake without making it taste like it is healthy. And if you want a sweet treat, you can top it off with the homemade creamy frosting that pairs perfectly here!

Ingredients

ingredients for zucchini sheet cake
  • Flour: All-purpose flour works great here. For a gluten-free zucchini sheet cake, use a gluten-free replacement flour!
  • Zucchini: Shredded zucchini adds moisture to this cake. Zucchini has such a mild flavor that you won’t feel like you are eating vegetables at all!
  • Plain Yogurt: I used fat free greek yogurt, but you can use regular plain yogurt or even substitute this with sour cream!
  • Cream Cheese: Cream cheese is great in frosting because it adds a slightly tangy flavor! Make sure it is room temperature!
  • Milk: The milk will get the frosting to your desired consistency. Feel free to use more if you want it to be runnier!

Here’s How to Make It

first 6 steps for zucchini sheet cake recipe
  1. Preheat & Prep: Preheat the oven to 350 and grease a 12 x 17 (or similar) jelly roll pan.
  2. Measure Dry Ingredients: In a medium bowl, whisk together flour, baking soda, cinnamon and salt. (photos 1-2)
  3. Measure Wet Ingredients: In a large bowl, cream together zucchini, sugars, eggs, vanilla and greek yogurt. (photos 3-4)
  4. Combine: Add dry ingredient to wet ingredients and mix until combined. Spread batter in prepared pan. (photos 5-7)
  5. Bake: Bake for 20-25 minutes until cake springs back when gently pressed with a finger. Allow to cool. (photo 8)
  6. Make Frosting: For the frosting, cream together the butter, powdered sugar, cream cheese, vanilla and milk until smooth. Spread over cooled cake. (photos 9-12)
final six steps for zucchini sheet cake recipe

Expert Tips

  • Don’t feel the need to peel the zucchini before shredding! You can shred the zucchini as is. No need to peel it!
  • Don’t over mix the batter! Once you combine the wet and dry ingredients, make sure you don’t over mix. This can result in a tough and dense zucchini cake!
  • To store, place your zucchini bars in an airtight container in the refrigerator for up to 5 days.
  • To make these into muffins or cupcakes, follow my zucchini bread muffins recipe!
sliced sheet cake with cream cheese icing

Frequently Asked Questions

What does zucchini do in baking?

Zucchini is a mild vegetable that offers moisture in baked goods. In this zucchini sheet cake, it helps to make this cake extremely moist and even adds some hidden veggies!

Do I need to blot the zucchini before using it to remove excess moisture?

In this recipe, no. Don’t worry about blotting the zucchini to remove excess moisture, since we really want all of that moisture in the cake! There are certain zucchini recipes that you might want to do this for, but in baking recipes it is generally not needed.

piece of zucchini sheet cake on plate

More Dessert Recipes to Try

Did you make this recipe? FANTASTIC. Please rate the recipe below and be sure to tag me on social when you share a photo on social – I love seeing what you’re up to in the kitchen!

piece of zuccihni sheet cake on plate
4.90 from 28 votes

Zucchini Sheet Cake

Zucchini Sheet Cake is an unexpected twist on a classic that combines the earthy goodness of zucchini with the sweetness of a moist sheet cake! Grated zucchini adds moisture and subtle flavor, while the creamy frosting provides the perfect balance of sweetness!
Prep: 15 minutes
Cook: 25 minutes
0 minutes
Total: 40 minutes
Servings: 20 servings
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Ingredients 

  • 2 cups flour
  • 1 teaspoon baking soda
  • 1 teaspoon cinnamon
  • 1 teaspoon salt
  • 2 cups shredded zucchini , (about 2 medium zucchinis)
  • 1 cup brown sugar
  • ¾ cup sugar
  • 4 eggs
  • 2 teaspoons vanilla
  • 1 cup plain greek yogurt, (I used fat free – may sub sour cream in a pinch)

Frosting

  • 5 tablespoons butter, melted
  • 4 cups powdered sugar
  • 2 ounces cream cheese, softened
  • 1 teaspoon vanilla extract
  • 6-8 tablespoons milk

Instructions 

  • Preheat oven to 350 and grease a 12×17 (or similar) jelly roll pan.
  • In a medium bowl whisk together flour, baking soda, cinnamon, and salt.
  • In a large bowl cream together zucchini, sugars, eggs, vanilla, and greek yogurt.
  • Add dry ingredients to wet ingredients and mix until combined. Spread batter in prepared pan.
  • Bake for 20-25 minutes until cake springs back when gently pressed with a finger. Allow to cool.
  • For the frosting, cream together butter, powdered sugar, cream cheese, vanilla, and milk until smooth. Spread over cooled cake.

Notes

  • Don’t feel the need to peel the zucchini before shredding! You can shred the zucchini as is. No need to peel it!
  • Don’t over mix the batter! Once you combine the wet and dry ingredients, make sure you don’t over mix. This can result in a tough and dense zucchini cake!
  • To store, place your zucchini bars in an airtight container in the refrigerator for up to 5 days.
  • To make these into muffins or cupcakes, follow my zucchini bread muffins recipe!

Nutrition

Calories: 247kcal | Carbohydrates: 53g | Protein: 4g | Fat: 2g | Saturated Fat: 1g | Trans Fat: 1g | Cholesterol: 37mg | Sodium: 207mg | Potassium: 104mg | Fiber: 1g | Sugar: 43g | Vitamin A: 125IU | Vitamin C: 2mg | Calcium: 43mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this?Leave a star rating or comment below!

Recipe adapted from 5 Boys Baker.

Tiffany of Creme de la Crumb in the kitchen

Welcome!

Hey there, I’m Tiffany – chef, photographer, mother, and avid taco eater. I am passionate about turning simple flavors and ingredients into tasty meals the whole family will love, with minimal prep and cleanup so there’s more time to spend eating and enjoying. Stay awhile, and help yourself to a taco or two!

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4.90 from 28 votes (25 ratings without comment)

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17 Comments

  1. Mary says:

    Sadly I’m not a big fan of this cake. It just doesn’t have much taste. In retrospect I wish I had made a chocolate zucchini cake. It is nice and moist but it needs a little zing.

    1. Kerri says:

      I added 2 cups pumpkin, pumpkin pie spice and used 3/4 cup butter instead of yogurt. Adds zing without going chocolate