Pumpkin Roll with Toffee Cream Filling and Caramel Sauce

Preheat oven to 375 degrees F (190 degrees C). Spray a 15x10 inch baking sheet with vegetable oil spray. Sift flour, cinnamon, ginger and allspice into small bowl. Set aside. In a large bowl, beat egg yolks, 1/3 cup white sugar and 1/3 cup brown ...