I'll post my recipe tomorrow (if i remember) but it's similar to
this recipe for anadama bread.
Mine is from the Betty Crocker cookbook (circa 1960!) but it's a variant under their anadama bread recipe. Use above recipe with oatmeal instead of cornmeal. Don't bother cooking, just add to boiling water (& honey & butter) & let sit for 5 min. Also use honey instead of molasses. I've been making it since I was 10 or so (in, um, 1967) from my Mom's cookbook. I also adapted it to a bread machine.
I suspect the original recipe was from left over oatmeal from breakfast -- hence, already cooked, and perhaps flavored with butter and honey or brown sugar. I now eat my oatmeal that way, in a back derivation!