First make sure you have some gluten free flour mix.. this makes just less than 2 cups, and you only need 1&1/4 for the recipe. I couldn't be bothered working out the exact measurements, I'll use the mix for something else instead.
Gluten Free Flour Mix:
1 cup brown rice flour
1/2 cup coconut flour
1/4 cup cornstarch
2 tablespoons tapioca flour/starch
1 1/2 teaspoons xanthan gum
Mix all ingredients together until well blended.
Ingredients for Blondies:
•170g (1 1/2 stick) salted butter, melted
•1 cup brown sugar (firmly packed)
•4 teaspoons vanilla extract
•2 teaspoons coconut milk
•1/2 teaspoon baking powder
•1 1/4 cups flour mix (see above)
•1/2 cup chopped pecans
Preheat oven to 170c (350f) degrees. Lightly grease an 7x11 inch pan with coconut oil.
Mix melted butter and sugar together in a medium sized bowl. Beat in vanilla, eggs and milk until well blended.
Mix remaining ingredients into the egg mix until well blended. Pour into prepared pan and smooth the top out.
Bake blondies until golden brown, about 20 minutes.