Add the pudding mix and heavy cream in stand mixer bowl.
Mix on low for about 30 seconds to allow ingredients to combine fully.
Add the orange oil.
Mix on high speed until the pudding whips into a thick and fluffy creme/mousse. If the creme becomes to thick for your needs, simply add small amounts of heavy cream, allowing the cream to mix in prior to adding more.
Keep cold until ready to use. Also be sure to keep anything you use this creme in chilled until close to serving time.