Try this Easy Pumpkin Roll Recipe recipe, or contribute your own.
Canned 100% pure pumpkin delivers a standardized moisture content that raw winter squash simply cannot match without prior processing. Fresh sugar pumpkins contain significantly higher water levels, which will destabilize the delicate crumb of a jelly-roll sponge if not roasted and thoroughly drained in cheesecloth for several hours. Using canned varieties ensures the batter maintains the density required to support the leavening action of baking soda and baking powder. Excess liquid from homemade purées dilutes the batter, preventing the top of the cake from springing back reliably when touched after 11 to 15 minutes in a 375-degree oven.
Altering fats or sugars introduces structural consequences to both the sponge and the cream cheese filling. Granulated sugar provides structural support and tenderness by trapping air during the egg-beating stage, meaning artificial sweeteners will yield a flat, rubbery texture unable to withstand rolling. Butter contains approximately 80 to 85 percent fat with water content that contributes steam to baking, whereas standard margarine introduces different emulsifiers that can cause the cream cheese mixture to break or liquefy during the mandatory one-hour refrigeration period.
Hot-rolling the sponge inside a powdered-sugar-dusted kitchen towel immediately upon removal from the oven prevents the outer crust from cracking as it cools. Cooling the rolled cake sets the internal crumb structure in its curved shape, minimizing breakage when the filling is eventually added. Utilizing a clean string pulled crosswise instead of a serrated knife yields clean spirals without compressing the soft cream cheese and butter filling.