Soft, chewy pumpkin spice oatmeal cookies sandwiched with a dreamy marshmallow cream filling. These nostalgic treats are easy to make, bursting with cozy fall flavors, and perfect for gatherings or lunchbox snacks.
For gluten-free, use a 1:1 gluten-free flour blend. For dairy-free, substitute plant-based butter and coconut-based marshmallow fluff. Chill dough for 30 minutes if cookies spread too much. Bake one test cookie first to check texture. Filling can be made ahead and stored in the fridge. Store cookies in an airtight container at room temperature for 2 days, or refrigerate up to 5 days. Freeze for up to 2 months.
Keywords: pumpkin spice, oatmeal cream pie, fall cookies, sandwich cookies, autumn dessert, easy baking, marshmallow filling, chewy cookies