In brief
King Arthur Baking's Gluten-Free Raspberry Almond Bars use a particular gluten-free cookie mix with almond paste and jam. Some crumbs are reserved for the topping.
Useful to know
King Arthur Baking's Gluten-Free Raspberry Almond Bars use a particular gluten-free cookie mix with almond paste and jam. Some crumbs are reserved for the topping. [1]
This is not a universal ratio for every gluten-free flour. Before substituting, check what the mix already contains; a flour name alone does not describe all the product's functional ingredients.
Sources
For further detail and to check the information: