Add quinoa and water to a saucepan. Cover and bring to a boil. Reduce heat to low, and simmer for 15 minutes. Once complete, remove from the stove, remove lid and allow to cool for a couple of minutes.
Meanwhile, preheat oven to 350F and line a baking sheet with parchment paper or a silicon baking mat. Set aside.
Add all dry ingredients to a large bowl. Then, measure 1½ cups of the cooked quinoa and add to the dry ingredients. Stir to coat, until all quinoa granules are covered in the mixture. Set aside.Add all wet ingredients to a small bowl and stir well.
Pour into bowl with dry ingredients and stir to combine.
In a separate bowl, combine shredded apple and lemon juice. Toss to combine, then fold into the dough.One tablespoon at a time, scoop mixture onto prepared baking sheet, leaving a small space between each cookie. They will not spread out, so you can keep the cookies close. Lightly form each cookie, as you’d like them to come out. I flattened them slightly between my palms.
Combine cinnamon sugar topping in a small bowl and sprinkle over the cookies. Transfer baking sheet to the preheated oven and bake for 25-30 minutes, until the tops begin to crack and turn golden.Remove from the oven, let cool on the pan for 10 minutes before transferring to a cooling rack and allowing them to cool for a couple of hours. Because cooked quinoa was used in this recipe, the longer you leave the cookies to cool, the firmer they will become. Leave it be and it they will transform!
These cookies can be stored in the fridge for up to 2 weeks.