Add your cranberries, sugar, and apple juice into a saucepan. Bring it to a boil over medium heat, occasionally stirring the mixture. Reduce the heat to medium-low and allow it to simmer for 10 minutes until the sauce has thickened.
Press the cranberry sauce through a fine mesh strainer with a rubber spatula. Make sure you’re scraping off the bottom of the sifter to get all that thicker juice stuck to the bottom.
Pour the sauce into a mason jar. Cover and place in the refrigerator for a minimum of 2 hours to let it set.
Place the jar under hot water for 20 seconds. Run a butter knife around the inside of the jar to loosen the jellied cranberry sauce.
Slice the cranberry sauce, and enjoy.
Notes
This recipe will last in the fridge for up to one week. If you want, you can actually can this recipe, which will last much longer.