To make Cinnabon frosting, start by beating the cream cheese and margarine until smooth. Use a stand mixer for this step to get the best results.
Next, gradually add the powdered sugar. Make sure to scrape down the sides of the bowl occasionally. Mix until all the sugar is fully incorporated.
Continue mixing the frosting for at least 12 minutes. This helps to ensure that the frosting is smooth and creamy.
Finally, add the lemon juice and vanilla extract. Mix briefly to incorporate them into the frosting.
This frosting is perfect for cinnamon rolls, cakes, and other baked goods. It has a rich, creamy texture with a subtle hint of citrus from the lemon juice.