The most extraordinary chewy Zucchini Cookies made by preheating oven to 350°F lining baking sheets squeezing 1 1/2 cups shredded zucchini most aggressively in clean kitchen towel until completely dry setting aside whisking 1 1/2 cups flour 1 tsp baking soda 1/2 tsp salt 1 1/2 tsp cinnamon and 1/4 tsp nutmeg beating 1 cup softened butter 1 cup packed brown sugar and 1/4 cup granulated sugar 2 to 3 minutes light and fluffy adding 2 room temperature eggs one at a time then vanilla on low adding flour mixture just combined stirring in squeezed-dry zucchini and 3 cups old-fashioned rolled oats until distributed folding in 1 cup chocolate chips scooping 2 tbsp portions 2 inches apart baking 10 to 12 minutes until edges set and centers slightly underdone cooling 5 minutes on sheet then on rack. A completely perfect chewy oatmeal chocolate chip hidden zucchini summer cookie recipe.