Use pure pumpkin puree (not pumpkin pie filling) for best flavor. For more caramel flavor, use homemade caramel sauce with coconut cream and brown sugar. Swirl caramel gently to prevent sinking. Pack brown sugar well for moisture. Lining pan with parchment paper makes removing blondies easier. Cool completely before slicing to avoid crumbling. Variations include adding nuts, chocolate chips, or cream cheese swirl. To make vegan, use coconut oil and a flax egg replacement.