1 lb margarine
3 ½ cups brown sugar
4 or more cups GF flour mix (see below)
½ tsp guar gum or xanthan gum
2 tsp baking soda
pinch of salt
2 ½ cups chocolate chunks (or morsels)
In a large mixing bowl, beat margarine and brown sugar until smooth.
Add eggs and beat well.
Add remaining dry ingredients (except chocolate) a little at a time, mixing well each time until you can touch the dough with a clean dry finger and nothing sticks to your finger.
Bake at 350°F until slightly browned on the edges. These are best a little undercooked.
Gluten Free Flour Mix
1 cup rice flour
1 cup tapioca flour
1 cup cornstarch
3 tsp. Potato flour (not potato starch)
Mix together thoroughly and use.
This generally works the same as all-purpose wheat flour in recipes.