Preheat your oven to 350°F (177°C) and cover several baking sheets with parchment paper.
In an electric stand mixer fitted with the paddle attachment, add the Earth Balance, brown sugar and granulated sugar and mix on medium for 5 minutes, or until nice and fluffy. Scrape down the sides and bottom of the bowl to make sure everything is incorporated. With the mixer on low stream in the olive oil until well blended and completely emulsified into the mixture. Add in the vanilla and mix for 30 seconds more, or until well blended.
In a small bowl, whisk together the oat flour, tapioca flour, cinnamon, baking powder, baking soda, sea salt and nutmeg. Pour the flour mixture into the sugar mixture and mix on low until the cookie dough is well blended. With the mixer on low, stream in the water and run the machine for about 2 minutes or until it's completely incorporated. Add in the oatmeal and chocolate chips and run the machine for 2 minutes more, or until the chocolate and oatmeal are evenly distributed throughout the dough. Be sure to scrape the sides and bottom of the bowl with a spatula to makes sure everything is incorporated. This dough is messy, so if you don’t have a cookie scoop, try using two spoons, or you may want to chill the dough in the fridge for several hours or overnight to firm it up. When ready to bake, roll 3-tablespoon-sized balls and allow 3 inches (7.5 cm) of space between them on the prepared baking sheet. **If you want a thicker cookie, chill your dough balls in the freezer for about 10 minutes prior to baking.
Bake one sheet at a time in the center of the oven for 13 minutes. They will spread in the oven. Once out of the oven, use the edge of a spatula to nudge the cookies into spheres. Allow the cookies to cool completely on the baking sheet. These cookies keep wonderfully in an air-tight container, at room temperature. Additionally, the dough keeps well in an air-tight container in the fridge for 3-4 days.
Thank you for baking these GF Vegan Chocolate Chip Oatmeal Cookies -- I hope you love them as much as we do!! Please tag me on social @displacedhousewife #displacedhousewife so that I can see your gorgeous cookies!