If you have ever wondered how to turn garden-fresh zucchini into a decadent, irresistible dessert, look no further. These Chewy Butterscotch Zucchini Blondies are the perfect marriage of earthy goodness and sweet, buttery indulgence. With a texture that sits perfectly between a fudgy brownie and a classic cookie bar, these blondies are a game-changer for anyone looking to incorporate vegetables into their sweets without sacrificing an ounce of flavor.

What makes these blondies truly special is the moisture content provided by the finely grated zucchini. Much like adding pumpkin or applesauce to a batter, the zucchini ensures a tender crumb that stays soft for days. When paired with the deep, molasses-like notes of brown sugar and the creamy richness of butterscotch morsels, you get a dessert that feels like a cozy hug in every bite.
Why This Recipe Works
The secret to the perfect blondie lies in the balance of fats and sugars. By using room-temperature butter and packing your brown sugar, we ensure a dense, chewy structure that is hallmarks of a professional-grade blondie. The zucchini acts as a secret ingredient—it adds moisture but virtually disappears into the batter once baked, making it an excellent way to use up excess produce.
Ingredients You Will Need
- 1 cup (227g) butter, room temperature: Provides the foundation for richness and moisture.
- 1 3/4 cup (350g) brown sugar, packed: Essential for that deep butterscotch flavor and chewy texture.
- 2 large eggs, room temperature: Acts as the binding agent to hold everything together.
- 1 teaspoon vanilla: Enhances the butterscotch notes.
- 2 cups (250g) all-purpose flour: Gives the structure needed to support the moisture from the zucchini.
- 1 teaspoon baking powder: Provides just enough lift for a soft bite.
- 1/4 teaspoon salt: Balances the intense sweetness of the butterscotch.
- 1 1/2 cup finely grated and drained zucchini, packed: The star ingredient for texture.
- 1 1/2 cups butterscotch morsels: Adds pockets of intense, creamy butterscotch flavor.
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and line a 9×13 inch baking pan with parchment paper.
- In a large bowl, cream together the softened butter and packed brown sugar until smooth and fluffy.
- Beat in the eggs one at a time, followed by the vanilla extract.
- Gently fold in the grated, drained zucchini. Ensure the zucchini is squeezed well to remove excess liquid, as this prevents a soggy blondie.
- In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add this to the wet ingredients until just combined.
- Fold in the butterscotch morsels.
- Spread the batter evenly into the prepared pan and bake for 25-30 minutes, or until a toothpick comes out mostly clean.
- Allow to cool completely before slicing to ensure those perfect, chewy edges.

Frequently Asked Questions
Can I make these dairy-free?
Yes, you can substitute the butter with a high-quality vegan butter stick and use dairy-free butterscotch chips. Ensure the butter substitute has a similar fat content to regular butter for the best texture.
How do I keep them from getting soggy?
The most important step is draining the zucchini. After grating it, place it in a clean tea towel or cheesecloth and squeeze out as much water as possible. This extra step is the difference between a dense, chewy blondie and one that is too wet.
Can I add nuts to this recipe?
Absolutely. Walnuts or pecans provide a wonderful crunch that complements the butterscotch flavor perfectly. Add 1/2 cup of chopped nuts with the butterscotch morsels.
Chewy Butterscotch Zucchini Blondies

Indulge in these incredibly moist and chewy blondies that cleverly hide garden-fresh zucchini within a decadent, butterscotch-infused batter. These bars strike the perfect balance between a fudgy brownie and a classic cookie, offering a deep, molasses-like sweetness that pairs beautifully with creamy butterscotch morsels. Perfect for using up summer squash, this recipe creates a tender, rich treat that stays soft for days and makes for a sophisticated dessert that everyone will adore.
- 1 cup (227g) unsalted butter, room temperature
- 1 3/4 cup (350g) brown sugar, packed
- 2 large eggs, room temperature
- 1 teaspoon vanilla extract
- 2 cups (250g) all-purpose flour
- 1 teaspoon baking powder
- 1/4 teaspoon salt
- 1 1/2 cups finely grated and well-drained zucchini, packed
- 1 1/2 cups butterscotch morsels
Preheat your oven to 350°F (175°C) and line a 9×13 inch baking pan with parchment paper.
In a large bowl, cream together the softened butter and packed brown sugar until smooth and fluffy.
Beat in the eggs one at a time, followed by the vanilla extract.
Gently fold in the grated, drained zucchini, ensuring it is squeezed well to remove excess liquid.
In a separate bowl, whisk together the flour, baking powder, and salt.
Gradually add the dry ingredients to the wet ingredients until just combined.
Fold in the butterscotch morsels.
Spread the batter evenly into the prepared baking pan.
Bake for 25 to 30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with just a few moist crumbs.
Allow the blondies to cool completely in the pan before cutting into squares.
Ensure you squeeze the grated zucchini thoroughly using a cheesecloth or paper towel; too much moisture will result in a gummy texture. Store in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week.