Raisin wine.
SO O Ch 272 (6) quotes the Tur to say
יין צמוקים מקדשים עליו (והוא שיש בהן לחלוחית קצת בלא שרייה) (טור):
Kiddush may be recited over raisin wine (provided some moisture can be squeezed from them before they are steeped in water) (Tur).
The raisins that I see do not yield moisture on squeezing.
What are the best raisins to use for making raisin wine over which to make kiddush?