Zucchini Blondies Recipe
These zucchini blondies are soft, chewy, and packed with brown sugar flavor, a sneaky way to use up summer zucchini in a totally craveable dessert bar.
Why You Will Love These Zucchini Blondies
If you have a garden overflowing with zucchini or just a couple of squash languishing in the fridge drawer, this zucchini blondies recipe is exactly what you need. Think of it as a cross between classic blondies and the best zucchini bread recipes you have ever made, but reimagined as a rich, chewy dessert bar. They are buttery, deeply caramelized with brown sugar, studded with melty chocolate chips, and somehow, wonderfully moist thanks to the shredded zucchini folded right into the batter.
This is one of those zucchini recipes dessert lovers do not expect to work, until they take one bite. The zucchini disappears completely into the texture, adding moisture without any trace of vegetable flavor. If you love a good cookie bar recipe or you are always looking for new ways to eat dessert without a ton of fuss, this one belongs in your regular rotation.
Before we get cooking, the right tools and ingredients make a real difference here. A sturdy box grater makes quick work of the zucchini, a good parchment liner means effortless removal from the pan, and using real butter and pure vanilla extract instead of substitutes gives these blondies that authentic bakery flavor. These are the products that genuinely help this recipe shine:
The Secret to Perfect Zucchini Blondies
The number one mistake people make with any zucchini dessert bar is skipping the squeeze. Zucchini is mostly water, and if you fold it into your batter straight off the grater, you will end up with a soggy, gummy bake instead of a chewy, fudgy one.
- Grate the zucchini on the large holes of a box grater.
- Wrap it in a clean kitchen towel or a few layers of paper towel.
- Twist and squeeze firmly over the sink until the liquid stops running.
Chef's Tip: Do not skip drying the zucchini, even if it feels like an annoying extra step. A well squeezed zucchini is the difference between a blondie that holds its shape and one that collapses in the middle.
Building That Classic Blondie Texture
Unlike a lot of zucchini bread recipes that lean cake-like, this batter is built to be dense, chewy, and a little gooey in the center, just like a proper blondie. The trick is in the ratio of melted butter to brown sugar. Whisking the two together until glossy creates that signature crackly top you see on good bar cookies, and using brown sugar instead of white brings a deep, almost caramel-like sweetness that pairs beautifully with the chocolate chips.
When you fold in the dry ingredients, be gentle. Overmixing develops the gluten in the flour too much, which can make the bars tough instead of tender. Stir just until the flour disappears, then fold in the zucchini, chocolate chips, and walnuts with a light hand.
If you love a little crunch against all that chewiness, walnuts or pecans are a natural addition here, but this recipe is just as delicious left completely nut free for a simpler, kid friendly treat. Either way, you get a mini dessert that is easy to portion, easy to share, and dangerously easy to keep coming back for.
Ready to make it? Here is the full step-by-step recipe:
Zucchini Blondies Recipe
These zucchini blondies are soft, chewy, and packed with brown sugar flavor, a sneaky way to use up summer zucchini in a totally craveable dessert bar.
Ingredients
- 1 3/4 cups all-purpose flour, spooned and leveled
- 1 tsp baking powder
- 1/2 tsp baking soda
- 1/2 tsp salt
- 1/2 cup unsalted butter, melted and slightly cooled
- 1 cup light brown sugar, packed
- 1 large egg, room temperature
- 2 tsp vanilla extract, pure
- 1 cup zucchini, grated and squeezed dry
- 3/4 cup semi-sweet chocolate chips, plus extra for topping
- 1/2 cup chopped walnuts, optional
- 1/4 tsp flaky sea salt, for sprinkling, optional
Instruction
Preheat the oven to 350 degrees F (175 degrees C). Line an 8x8 or 9x9 inch baking pan with parchment paper, leaving an overhang on two sides.
Grate the zucchini, then place it in a clean kitchen towel or paper towels and squeeze out as much liquid as possible. Set aside.
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
In a large bowl, whisk the melted butter and brown sugar together until smooth and glossy, about 1 minute.
Whisk in the egg and vanilla extract until fully combined.
Fold the dry ingredients into the wet ingredients with a spatula just until no streaks of flour remain. Do not overmix.
Fold in the grated zucchini, chocolate chips, and walnuts if using, until evenly distributed.
Pour the batter into the prepared pan and spread it into an even layer. Sprinkle a few extra chocolate chips and the flaky sea salt on top if desired.
Bake for 28 to 32 minutes, until the edges are golden and a toothpick inserted in the center comes out with a few moist crumbs.
Cool the blondies completely in the pan on a wire rack before lifting out using the parchment overhang and slicing into squares.
Equipment
- 8x8 or 9x9 inch baking pan
- Parchment paper
- Box grater
- Mixing bowls
- Whisk
- Rubber spatula
- Wire cooling rack
Notes
Serving, Storing, and Variations
These blondies are wonderful served slightly warm with the chocolate chips still a little melty, but they are just as good at room temperature, which makes them a fantastic make-ahead treat for potlucks, lunchboxes, or an easy weeknight dessert facile enough for beginner bakers.
A few ways to make them your own:
- Swap the chocolate chips for white chocolate or butterscotch chips.
- Add a swirl of peanut butter or cream cheese into the batter before baking.
- Sprinkle flaky sea salt on top right when they come out of the oven for a sweet and salty finish.
Store leftovers in an airtight container at room temperature for up to three days, or pop them in the fridge if you want them to last through the week. They also freeze well, so this is a great recipe to double if you are stocking up on desserts to keep on hand. However you slice them, these zucchini blondies prove that vegetable-packed baking can still taste like pure indulgence.
