Oat flour will probably work in place of the almond flour since it's no bake. You may need 1-2 tbsp less since it's a tad drier. For the brownie base you can replace chocolate protein powder for more cocoa powder if you wish. For cookie dough, if you'd like to replace the protein powder you can up the almond flour to 1.5 cups and add .25 cup oat flour in place of the protein.