Plum Jelly

1 . Stage

Combine plums, sugar, and water in a large pot over medium-high heat. Bring to a boil, stirring until sugar dissolves. Lower heat to medium and cook, stirring occasionally to prevent sticking, until mixture has thickened to desired consistency, 30 to 40 minutes.

2 . Stage

Meanwhile, inspect five 8-ounce jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until jelly is ready. Wash new, unused lids and rings in warm soapy water.

3 . Stage

Remove jelly from the heat and skim off any heavy foam. Ladle hot jelly into hot, sterilized jars, filling to within 1/2 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any residue. Top with lids and screw rings on finger-tight.

4 . Stage

Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 15 minutes. Remove jars from water bath and tighten rings.

5 . Stage

Place jars on a towel to cool until lids pop. Press lids to confirm the seal.