NOTE: I used fresh pineapple. You could try canned, but I think fresh pineapple tastes the best.
Trim the pineapple by removing the top, cutting off the shell and then cutting into quarters. Removing the core, is easier.
I like to use my food processor, but you can cut the pineapple, by hand. I pulse the cut pineapple until it's fine but not pureed.
Strain the pineapple, reserving the juice with the apricot juice. I ended up with about 3/4 cups juice.
In a large pot, add the fruit, box of pectin and 1 1/2 cups sugar. Combine and bring to a low boil.
Slowly stir in the remaining sugar. Add 1/2 cup of the reserved juice. Bring to a continuous roll, stirring frequently, so it doesn't stick. Bring to a gel stage (approximately 10 minutes).
I like to chill a plate in my freezer. Spoon a little of the cooked fruit on the cold plate. Run your finger through it, and see if it separates. Let is sit a minute more and feel the texture. If it gels, it's ready.
Pour into sterilized clean class jars with lids.
Set the filled jars in a rack, covered by at least 2" of boiling water. Keep the pot covered and set a timer for 10 minutes, from when the water begins to rapidly boil.
Remove from the pot, carefully, with a jar lifter onto a clean towel.
Listen for the "pop" of the vacuum on the lids…and/or press a finger on the top. If it's firm, you have a good vacuum.
If a jar is not sealed, properly, you can repeat the water bath boil method, or refrigerate this jar and eat within 2 weeks.Edit my recipe