I realize as I look through my cookbook that a lot of the recipes my family use religiously are quite old including my great-aunt Mary's potato salad from the 20's, but the oldest is probably my great-grandmother Henry's plum pudding sauce which no Christmas would be without. Most of her many descendents still use this every year. She was born in 1850 and the rumor is that is her mother's recipe, but for sure she used it as a young married woman, so about 1868. What's yours? I'm sure we'd all love it if you could share the recipe too!