That's a really super good question. Why not, indeed?
So... you got it!
Yeah growing up with PB as far as Jellies / preserves go it was usually Grape or strawberry (about tied though SB is fav), then apricot or peach (also about tied but much more rare), and occasionally a cherry preserves, like out of a gift basket. Now I loves me some PB & nanner with or without bread, and have tried PB on apple slices.
Never tried blackberry or blueberry, raspberry sounds "feasible".

go back to sleep, kitty! 