Step 1

Preheat the oven to 180C/350F.

Step 2

Beat the butter and sugar in a bowl until light and fluffy.

Step 3

Mix the arrowroot and water together in a cup and then add to the mixture with the vanilla. Stir until combined.

Step 4

Sift in the flour, baking powder and cinnamon. Add the oats and mix again until the flour is all combined,

Step 5

If you're adding choc chips do that now and mix again.

Step 6

Line a baking sheet with parchment paper (you may need two). Use a cookie scoop to divide the mixture into 16 or use your hands to roll into 16 golf sized balls.

Step 7

Gently push down the top of the cookies and place in the oven.

Step 8

Bake for 8-10 minutes. They will continue to cook once they're out the oven so you want them to look a little underdone so they stay chewy!