Gelatin

If whipped cream has to stand at cool room temperature for several hours, use the gelatin version (see Gelatin-Stabilized Whipped Cream), which produces the most stable whipped cream. It will hold at a room temperature of up to about 75°F/23°C for as long as 8 hours. It is a little more dense than the cornstarch version, but it is not quite as dense as the cream cheese one.