Preheat the oven the 350 degrees F
Soften butter and coconut oil
In a large bowl, whisk together the flour, yeast, flaxseed, baking powder, soda, and salt
In a separate bowl beat the butter and coconut oil on medium speed until creamy
Add in the sugar and beat on medium to high speed until fluffy
Add in the egg and egg yolk, beating until combined
Add in the vanilla extract and beat until combined
Gradually add in the dry ingredients, beating on low speed until just combined and mixed
Add oats and stir
Stir in the chocolate chips with a spatula until they are evenly dispersed
Scoop the dough into 1-inch rounds (I use an ice cream scoop so they are fairly uniform in size) and place on a baking sheet covered with parchment paper
Bake for 5-10 minutes based on desired crispiness