Plum-Mango Jam

INGREDIENTS
3 cups mango puree (I steamed the mangoes in the microwave for 8 minutes, ran the pulp through the juicer after removing the skin and pit)
3 cups diced plums
2 cups water
4 cups sugar
3 TBSP low/no sugar powdered pectin

INSTRUCTIONS

• Combine mango puree and diced plums with water, and sprinkle pectin over the top, stirring constantly. 
• Cook over medium heat until plums soften.  Puree mixture with an immersion blender.
• Bring fruit/pectin mixture to a full rolling boil, which doesn't stop bubbling even with stirring.  Stir continuously. 
• Add sugar, and return to a boil. Stir constantly.  Once the full rolling boil is resumed, boil for one minute. 
• Fill sterilized jars, clean rims, place lids and rings, and process in a water bath for 20 minutes.