Notes: It’s incredibly important to measure both the oats and flour correctly, using the spoon-and-level method described in the links above. If scooped from the container using the measuring cup, you’ll end up with 1.5 times as much, which will dry out your cookies and make them crumbly.
To make your own instant oats, pulse 1 cup of old-fashioned oats in a food processor 5-8 times.
For the gluten-free flour, I used as follows: ½ c (60g) millet flour, 2 tablespoons (17g) brown rice flour, 2 tablespoons (15g) tapioca flour, and ½ tsp (1g) xanthan gum.
Melted margarine may be substituted for the coconut oil or butter. Regardless of which is used, be sure that the egg is at room temperature before whisking it in. A cold egg added straight from the fridge would rapidly cool the fat source, resulting in small blobs of semi-solid coconut oil, butter, or margarine.
Honey or agave may be substituted in place of the maple syrup.
There will be leftover frosting. Store it in an airtight container in the refrigerator for up to 5 days.
{gluten-free, clean eating, low fat, low calorie}