Preheat your oven to 375°F (190°C) and line those baking sheets with parchment paper.
In a medium bowl, whisk together the dry ingredients - flour, baking soda, baking powder, salt, cinnamon, and nutmeg.
Grab a large bowl and cream together the softened vegan butter and both sugars until light and fluffy. Then, beat in the Just Egg and vanilla extract until well combined.
Slowly add the dry ingredients to the wet mixture, stirring until just combined. Don't overmix!
Now, fold in the oats, plump raisins, and vegan chocolate chunks.
Using a tablespoon, drop scoops of dough onto your prepared baking sheets, leaving some space for spreading.
Bake the cookies for 12-14 minutes, aiming for golden brown edges. For chewer cookies, go for 12 minutes, and for crispier cookies go for 14 minutes.
Let the cookies cool slightly on the baking sheet before transferring them to a wire rack to cool completely.