Apple Marmalade

Apple Marmalade 

1 medium orange                       
6 medium apples

2 c. water                                 
3 T. lemon juice

5 c. sugar 

Peel, core, and coarsely chop apples to equal six cups.  Quarter unpeeled orange.  Remove seeds.  Thinly slice orange.  In an 8 to 10 quart kettle combine orange slices, apples, water, and lemon juice.  Bring mixture to boiling.  Reduce heat; simmer about 10 minutes or till apples are tender.  Add sugar.  Bring to full rolling boil, stirring constantly.  Continue cooking and stirring till thickened and clear.  Remove from heat.  Skim off foam with a metal spoon.  Pour at once into hot, sterilized jars.  Seal and process. Yield: 6 half-pints.