Preheat oven to 200 degrees Celcius and line a baking tray with baking paper
In a medium-sized bowl mix the macadamia nut flour, milo and baking powder together
Add the melted butter and maple syrup to the milo mixture and mix well. (will form a sticky dough)
Next, whisk egg white till stiff and then incorporate into the cookie dough mixture
Shape the dough into medium-sized balls in your hands and then flatten into cookie shapes onto the baking tray, making sure to leave space between the cookies so they don't bake into each other.
Bake for 5 minutes and then remove from the oven. Bang the pan several times on the counter and the cookies will get a cracked look. Return to oven and bake for a further 5 minutes.
Leave the cookies into the oven till cool, or if you'd like to add chocolate chips, remove and press chips into the warm cookies. Leave in the oven to cool.