3 cups finely chopped, pitted, peeled mangoes (about 3 pounds)
1 1/2 cups crushed red raspberries (about 1 1/2 pints)
2 tablespoons lemon juice
1 package fruit pectin
5 1/2 cups granulated sugar

Prepare home canning jars and lids according to manufacturer's instructions.

Combine mangoes, raspberries, lemon juice and pectin in a large saucepot. Bring to a boil over high heat, stirring occasionally. Add sugar, stirring until dissolved.

Return to a rolling boil. Boil hard 1 minute, stirring constantly. Remove from heat. Skim foam if necessary. Ladle hot jam into hot jars, leaving 1/4-inch headspace.

Wipe jar rim clean. Screw band down evenly and firmly just until a point of resistance is met - fingertip tight.

Process 10 minutes in a boiling-water canner.

Yields about seven 8-ounce jars.