Step 1

Sterilize the jars, lids and rings to prepare for jam.

Step 2

Juice the mandarins and lemons.

Step 3

Measure the juices exactly. Combine orange juice, cups of sugar and butter to a large heavy bottom pan. Place over high heat. Stir until the sugar dissolves and bring to a full rolling boil. Boil hard for exactly 1 minute, stirring constantly.

Step 4

Add 1 package Liquid Certo, bring to boil and boil hard for 1 minute more. Remove from heat and immediately ladle the hot jelly into sterile jars leaving 1/4 inch headspace.

Step 5

Using a damp, clean paper towel, wipe off the tops of the jars and then add the lid. Screw the ring on the jar and process in a hot water bath for 10 minutes to seal.

Step 6

Makes 7-8 pint jars of Orange Juice Jelly