Jeeze....I mis-read your post and was about to answer..."Bottle or otherwise!" ;Q
I wouldn't like raisins in blondies...I like pecans, walnute or chocolate chips....raisins are in applesauce bars or oatmeal cookies....just my prejudice!
Linda C

Why not try them if you like them?? I see no reason not to.
We all have different likes and dislikes and none is right or wrong.
RL`

Sure you can. I found recipes using them. Check the add-ins with the one below.

Here is a link that might be useful: Blondies

I made blondies today, using one- half cup of each of the following mix-ins: peanut butter chips, butterscotch chips, chopped pecans, and dried cherries. Delicious.