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Wholesome Harvest Zucchini Oat Cookies

Enjoy these wonderfully tender, whole-grain cookies, lightly spiced with cinnamon and ginger, and studded with rich dark chocolate and walnuts. Flecked with garden zucchini, this recipe is inspired by DASH principles for a balanced treat.
Course Dessert
Cuisine American
Prep Time 25 minutes
Cook Time 22 minutes
Chilling Time 45 minutes
Total Time 1 hour 32 minutes
Servings 22 cookies
Calories 170kcal

Equipment

  • Two large, heavy-bottomed baking sheets
  • Parchment paper or silicone mats
  • Box Grater
  • Clean kitchen towel or cheesecloth
  • Large mixing bowl
  • Electric hand mixer
  • Silicone Spatula
  • 3-tablespoon cookie scoop

Ingredients

  • 2 cups white whole-wheat flour approx. 240 g
  • 2 ¾ cups old-fashioned rolled oats 220 g
  • ¼ cup granulated sugar approx. 50 g
  • ¼ cup packed light brown sugar approx. 55 g
  • ¾ cup dark chocolate chunks 70% cacao or higher, approx. 128 g
  • ½ cup chopped walnuts approx. 60 g
  • ¼ cup ½ stick unsalted butter, at room temperature (57 g)
  • ½ cup unsweetened applesauce
  • 1 extra-large egg approx. 56 g, shelled
  • 1 ⅓ packed cups finely shredded zucchini approx. 200 g
  • 2 teaspoons vanilla extract
  • ¾ teaspoon ground cinnamon
  • ½ teaspoon ground ginger
  • ¼ teaspoon baking soda
  • teaspoon fine sea salt optional

Instructions

  • Prepare the Oven and Zucchini: Position oven racks in the upper and lower thirds and preheat to 350°F (175°C). Line your baking sheets with parchment paper. Using a box grater, shred the zucchini onto a clean kitchen towel. Gather the towel ends and wring out as much excess moisture as possible over a sink. Set the dry zucchini shreds aside.
  • Create the Creamed Base: In a large bowl, combine the room-temperature ¼ cup butter with the ¼ cup granulated sugar and ¼ cup light brown sugar. Using an electric hand mixer on medium-high speed, beat the mixture for about 2-3 minutes until combined and fluffy.
  • Enrich the Dough: Add the extra-large egg, unsweetened applesauce, and vanilla extract to the creamed butter mixture. Beat on medium speed for another minute, scraping down the sides of the bowl with a spatula, until everything is fully incorporated.
  • Integrate the Dry Elements: Add the white whole-wheat flour, rolled oats, cinnamon, ginger, baking soda, and optional salt to the bowl. Start the mixer on its lowest speed, then increase to medium, mixing just until the dry ingredients are barely combined.
  • Fold in Key Ingredients: Switch to a spatula. Add the squeezed zucchini, the ¾ cup dark chocolate chunks, and the ½ cup chopped walnuts to the dough. Fold gently until evenly distributed. Do not overmix.
  • Shape and Chill the Dough: Using a 3-tablespoon scoop, portion the dough into mounds and place them on the prepared baking sheets, leaving at least 2 inches of space between each. Gently press down on each mound to flatten it to about ½ inch. Transfer the sheets to the refrigerator to chill for at least 45 minutes. This step is crucial.
  • Bake to a Golden Finish: Place the chilled cookie sheets in the preheated oven. Bake for 18 to 22 minutes, swapping the sheets between racks and rotating them 180 degrees halfway through. The cookies are ready when they are firm and appear golden at the edges.
  • Cool and Set: Remove the baking sheets from the oven and allow the cookies to cool on the pans for 10 minutes to set. Afterwards, carefully transfer them to a wire rack to cool completely.

Notes

  • Storage: Store the cookies in an airtight container at room temperature for up to 4 days. Due to the high moisture content, they are best eaten within the first few days.
  • Texture: These cookies are formulated to be softer and more cake-like than a traditional buttery, crisp cookie.

Nutrition Information (Approximate)

Approximate values based on standard ingredients, a 22-cookie yield, and optional salt.
  • Calories: 170 kcal
  • Total Fat: 7.6 g
    • Saturated Fat: 3.0 g
  • Sodium: 20 mg
  • Total Carbohydrate: 22.5 g
    • Dietary Fiber: 3.0 g
    • Total Sugars: 7.2 g
    • Includes Added Sugars: ~6.5 g
  • Protein: 3.9 g
  • Potassium: 144 mg
  • Magnesium: 35 mg