[header] How to make gluten free chocolate chip cookie bars [title] Preheat the oven to 350 ° f/180ºc. [title] Lightly grease a 9 " x 13 " baking pan. [title] In a large bowl, whisk together the baking flour, xanthan gum, salt, baking powder and the baking soda. [title] Add the flax meal, and whisk until combined. 
[step] The flaxseed works in place of an egg; it helps to bind and it adds fiber. [title] Stir in the brown sugar and whisk until combined.