Plum Vanilla Jam - cooking recipe

Ingredients

1 1/2 lbs red plums, halved, pitted and coarsely chopped
1 1/2 cups sugar
2 1/2 inches lemon zest (3 strips)
1 tablespoon fresh lemon juice
1 pinch salt
1/2 vanilla bean, seeds scraped and reserved

Preparation

Bring all ingredients to a boil in a large pot, mashing with a potato masher.
Cook, stirring frequently, until mixture is the consistency of very thick honey, about 5 to 10 minutes.
Remove plum skin if desired. Discard vanilla bean and zest. Do not strain; jam should be chunky.
Refrigerate in an airtight container up to 1 month.