A plum. The entire verse of "Little Jack Horner" : : Little Jack Horner sat in the corner, : Eating a Christmas pie, : He put in his thumb and pulled out a plum, : And said "What a good boy am I!" :
Little Jack Horner is said to have eaten a Christmas pie, not specifically a fruit pie. The nursery rhyme goes, "Little Jack Horner sat in a corner, eating a Christmas pie."
A Christmas pie is just a pie, and in this case, it has plums in it.
I don't think the original Nursery Rhyme counts the number of plums. On the lighter side....... I don't think he pulled out any plums. Little Jack Horner sat in a corner eating his Christmas Pie, he put in his thumb and instead of a plum, he squirted juice in his eye.
a plum
Little Jack HornerLittle Jack Horner sat in the cornerEating his Christmas pie,He put in his thumb and pulled out a plumAnd said "What a good boy am I!"
It is "a Christmas pie" as the article "a" indicates that it is one of many Christmas pies, rather than a specific pie belonging to someone.
Pumpkins are used in both.
You find a black berry pie tree and dig a hole under it, and build an oven and then pull the tree out and cook it in a pie tin
Pumkin pie or make it into a Jack-o-lantern I guess...
Simple Simon sat in a corner, eating a Christmas pie.
Christmas pie
Two pieces. (see discussion)