Italian meringue is the most stable type of meringue as the melted sugar cooks the egg whites, resulting in a soft, glossy finish that doesn’t need to be baked in the oven. It is most often used for piping on top of pastries and desserts such as baked Alaska because it holds its shape so well.
Italian meringue always works best with double the amount of sugar to egg white so if you require a larger amount just scale up the recipe accordingly.