Notes: It’s extremely important to measure both the oats and flour correctly using the
spoon and level method or a
kitchen scale. Too much of either will dry out the cookies and leave them crumbly instead of chewy.
Instant oats are also known as quick-cooking or minute oats. They come in large canisters, just like old-fashioned oats. They are not the ones in the small flavored packets of oatmeal. To make your own, add the same amount of old-fashioned oats to a food processor, and pulse 10-12 times.
For a gluten-free version, use
gluten-free instant oats and the following gluten-free flour blend: ½ cup (60g) millet flour, 2 tablespoons (15g) tapioca flour, 2 tablespoons (17g) brown rice flour, and ½ teaspoon xanthan gum.
The amount of moisture in your zucchini will be the biggest determining factor in the texture of your cookie dough. If the cookie dough is fairly wet and sticky, the cookies will spread while baking. If the cookie dough is stiff, the cookies will barely spread, if at all, so you’ll need to flatten the cookie dough before baking.
For more tips and answers to all other questions, including substitutions, see my Oatmeal Cookie FAQ page. {gluten-free, clean eating, low fat, low calorie}