Pinot Grigio is smooth, Sauvignon Blanc is crisp. Maple syrup adds rich sweetness; pumpkin spice syrup amps up fall flavor. Chill to blend flavors. Add more cider or grape juice for non-alcoholic. Whisk pumpkin puree well to avoid lumps. Taste before serving and adjust sweetness or spice if needed. Bubbly topping makes it extra festive.