Pumpkin cake roll with a sweet buttercream filling

Sugar, vegetable oil (contains one or more of the following: canola oil, palm oil, safflower oil, soybean oil, sunflower oil), wheat flour, water, eggs, glycerin, invert sugar, corn syrup, whey protein concentrate, spices, skim milk, food starch-modified, salt, buttermilk, propylene glycol, gum blend (guar gum, xanthan gum), natural flavors, baking soda, dried pumpkin, caramel color, sodium acid pyrophosphate, oat fiber, maltodextrin, sodium stearoyl lactylate (emulsifier), corn flour, annatto extract (color), potassium sorbate (preservative), soy lecithin (emulsifier), corn starch, monocalcium phosphate, glucono delta lactone, beta-carotene (color), vitamin a palmitate, titanium dioxide (color).