These apple pie bars feature a buttery shortbread crust, a soft cinnamon-spiced apple filling, and a crunchy oat crumble topping. They’re the happy accident that turned into a favorite dessert—easy to make, perfect for sharing, and full of cozy fall flavor.
For best results, use a mix of tart and sweet apples (e.g., Granny Smith and Honeycrisp). Old-fashioned rolled oats are essential for a crunchy topping. Let bars cool completely before slicing to avoid a soupy mess. Bars taste even better the next day. For gluten-free, use a 1:1 gluten-free flour blend and certified gluten-free oats. For vegan, use vegan butter sticks.
Keywords: apple pie bars, oat crumble, Friendsgiving dessert, apple dessert, fall baking, easy apple bars