For those of you who’ve remained invested in this epic saga of the gluten free Costco copycat muffins, this is your post! The fifth installment in our adventure, heaped with apples and buttery crumb topping and vanilla glaze: these GIANT gluten free apple streusel muffins, à la our favorite bulk grocery store chain. I remember that, as a kid facing the trays of massive muffins in the Costco bakery section, these apple streusel creations seemed very “adult.” Something about the elegance of the crumb topping and the criss-crosses of white glaze just had the air of “posh adult breakfast.” Now, as an adult, I’m not sure where I got that…
