Old, way old Betty Crocker recipe which I always make for the Holidays. I did a recipe search and was surprised not to find it here. This is best when kept (covered) in refrigerator overnight and it stays fine for 4-5 days.
Wash orange really well. Do not peel.
Chop whole orange as finely as possible with a sharp knife (don't be tempted to blizt, makes it too mushy). Discard seeds (pips).
Open jar, place sauce in bowl, mash a little.
Add orange.
Stir with fork to combine well.
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