Ube Cake Roll

CAKE: all–purpose flour, (Bleached Wheat Flour Enriched [Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid], Malted Barley Flour), granulated sugar, evaporated milk (milk, dipotassium phosphate, carrageenan, vit D3), canola oil, eggs, purple yam jam (frozen purple yam, condensed milk, [milk & sugar] sugar, butter, purple yam extract), purple yam extract (glucose syrup, water, propylene glycol, sorbitol syrup, artificial sweet potato flavor, coloring FD&C, Red #3, FD&C Blue #1, ethyl vanillin) baking powder, (corn starch, sodium bicarbonate, sodium aluminum sulfate, monocalcium phosphate ), cream of tartar, salt FROSTING: all–purpose flour, evaporated milk, granulated sugar, purple yam extract, butter, salt, white chocolate morsels (sugar, fractionated palm kernel oil, milk, nonfat milk, and less than 2% of soy lecithin and natural flavor)