Recipe(tried): Harry and David's Pepper and Onion Relish (copycat recipe)

Have to admit, I'm addicted to the stuff. I've seen several recipes online, but none seemed quite right. I found one online a couple of years ago and made my own changes. Since this uses canned tomatoes you can make it year-round.

This recipe doesn't have quite the kick of the original. I like it better, but feel free to increase the jalapenos or red pepper flakes to taste.

KNOCK-OFF OF HARRY AND DAVIDS ONION AND PEPPER RELISH

4 cans (14.5 oz each) diced tomatoes, well drained
2 large onions, finely chopped
2 red bell peppers, finely chopped
5 jalapeno peppers, seeded and diced
1 teaspoon red pepper flakes
2 teaspoons grated lemon peel
2 teaspoons salt
1 cup white vinegar
4 cups sugar
3 boxes pectin

Combine drained tomatoes, onion, red pepper, jalapenos, pepper flakes, lemon peel, salt and vinegar in large sauce pan. Bring to a boil. Reduce heat and simmer, uncovered, for 25 minutes.

Add sugar and stir until dissolved. Add pectin and stir until dissolved. Return to a boil, then reduce heat and simmer an additional 20 minutes. Let sit until cool - mixture will continue to cook and will thicken as it cools.

Freeze in small amounts and thaw as needed.