Creating your own Sweet Corn Relish is simple with these detailed steps:

1. Prepare Ingredients: If using fresh corn, cut it off the cob. Dice the bell peppers and chop the onion finely.
2. Combine Ingredients: In a large pot, mix the sweet corn, bell peppers, onion, apple cider vinegar, sugar, salt, ground mustard, black pepper, celery seeds, and turmeric.
3. Cook Mixture: Heat the pot over medium heat. Stir frequently until the mixture begins to simmer.
4. Simmer: Allow it to simmer for about 20 minutes, or until the vegetables are tender, stirring occasionally.
5. Thicken (Optional): If you prefer a thicker relish, mix the cornstarch with a little cold water to create a slurry. Add this to the pot, stirring continuously until the relish thickens.
6. Jar It Up (Optional): If canning, sterilize your jars and lids beforehand. Carefully ladle the hot relish into the jars, leaving about ½ inch of headspace. Seal the jars and process in a boiling water bath for 10-20 minutes.
7. Cool and Store: If not canning, allow the relish to cool to room temperature and transfer it to an airtight container. Store it in the refrigerator, where it can last for up to two weeks.

By following these steps, you’ll have a delicious Sweet Corn Relish ready in no time!