This is a straightforward single-layer cake where grated zucchini does one job: keeps the crumb moist without announcing itself. The flavor comes from cinnamon, vanilla, and a mix of granulated and brown sugar. It bakes in 45 minutes, holds well for days, and is the kind of thing you can make ahead and forget about until you need it.
Before you start
Two things actually matter here. First, squeeze the grated zucchini thoroughly — wrap it in a clean kitchen towel and wring hard. Skipping this step adds excess water to the batter and the center of the cake will stay wet no matter how long you bake it. Second, don’t overmix once the wet and dry ingredients come together. Stir until the flour just disappears, then fold in the zucchini. Overdeveloping the gluten at this stage makes the cake tough instead of tender, and no amount of moisture from the zucchini will fix that.
Shopping notes
- Light brown sugar: Dark brown sugar works as a direct swap and gives a slightly deeper molasses flavor — either is fine.
- Vegetable oil: Any neutral oil works: canola, sunflower, or refined avocado oil. The recipe notes mention coconut oil as a partial substitute; use refined coconut oil if you don’t want a coconut taste.
- Zucchini: Medium zucchini (about 6–8 inches) have less water and fewer large seeds than oversized ones. If your garden has produced monsters, scoop out the seedy core before grating.
Mistakes to avoid
- Grating zucchini too far ahead: Grated zucchini sitting in a bowl keeps releasing liquid. Grate it just before you mix the batter, or squeeze it again right before folding it in if there’s been any wait.
- Not greasing the pan well enough: A 9-inch round pan has straight sides that can trap a moist cake. Grease it, then line the bottom with a parchment circle. This matters especially if you’re baking the cake a day ahead and want it to release cleanly.
- Pulling the cake too early: The top browns before the center is done. A golden top at 35 minutes doesn’t mean it’s ready — test with a toothpick in the dead center, not near the edge. If it comes out with wet batter, give it 5 more minutes.
- Frosting a warm cake: If you’re using cream cheese frosting, the cake needs to be fully cool — not just warm to the touch. A cake that feels cool on the outside can still be warm in the middle. Give it at least 90 minutes on a rack, or cool it completely, wrap it, and frost the next day. Skip the powdered sugar dusting if you’re making this ahead — it absorbs overnight and disappears.
Delightful Zucchini Cake
Equipment
- 9-inch round cake pan
- Mixing Bowls
- Hand whisk
- Grater
- Oven
Ingredients
- 2 cups all-purpose flour sifted
- 1 cup granulated sugar
- ½ cup light brown sugar packed
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- 1 teaspoon ground cinnamon
- ½ teaspoon salt
- 2 units large eggs at room temperature
- ½ cup vegetable oil
- 1 teaspoon vanilla extract pure
- 2 cups zucchini grated, with moisture squeezed out
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.
- In a large bowl, combine the flour, granulated sugar, brown sugar, baking soda, baking powder, ground cinnamon, and salt. Whisk until evenly mixed.
- In a separate bowl, whisk together the eggs, vegetable oil, and vanilla extract until smooth. Gradually add the wet mixture to the dry ingredients, stirring until just smooth.
- Fold in the grated zucchini, ensuring it is evenly distributed throughout the batter.
- Pour the batter into the prepared cake pan and smooth the top with a spatula.
- Bake for 45 minutes or until a toothpick inserted into the center comes out clean, with the cake having a golden brown top.
Notes
- Consider adding a pinch of nutmeg for a warm spice kick.
- For a richer flavor, substitute half of the vegetable oil with melted coconut oil.
Nutrition
Frequently asked questions
Can I make this cake the day before I need it?
Yes — this cake actually slices more cleanly on day two. Bake it, cool it completely, wrap it tightly in plastic wrap, and leave it at room temperature overnight. If you’re adding cream cheese frosting, frost it the morning of your event.
Can I freeze this cake?
Yes, it freezes well unfrosted. Wrap the cooled cake tightly in plastic wrap, then in foil, and freeze for up to two months. Thaw overnight at room temperature still wrapped, then frost or serve as-is.
Do I need to peel the zucchini before grating?
No, leave the skin on. It’s thin enough that it disappears into the batter during baking and doesn’t affect the texture.
Can I bake this in a different pan?
An 8-inch square pan works and gives you easier-to-cut portions for a crowd. A 9×13 pan also works but reduces the bake time — start checking at 30 minutes.
Can I add mix-ins like nuts or chocolate chips?
Yes, up to ¾ cup of chopped walnuts, pecans, or chocolate chips can be folded in with the zucchini. Toss them in a teaspoon of flour first so they don’t sink to the bottom.
How should I store leftovers if the cake is frosted?
A frosted cake should go in the refrigerator, covered, and will keep for up to four days. Pull individual slices out about 20 minutes before serving — cream cheese frosting is much better at room temperature than cold.
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