Transforming this classic into a gluten-free delight is simple and just as delicious. Swap the all-purpose flour in both the base and filling with your favorite gluten-free flour blend. Look for a 1:1 replacement type, ensuring it contains xanthan gum, the magic ingredient that mimics gluten's binding properties. When pressing the base into the pan, be gentle – gluten-free dough is a bit more delicate. As it bakes, it will fill your kitchen with the same mouth-watering aroma, and the end result will be so scrumptious, no one will guess it's gluten-free!