dba_afish said:
update: it might be peanut butter, coffee close second.

(I've had such a journey on this, dude.)

Oh, here's a recipe I like.
Slice 3 large or 4 medium-sized ripe bananas and freeze them.
Then put them into a food processor with 60 grams (about a quarter cup) of peanuts (or peanut butter), process until just smooth.
Cheap and tasty "peanut butter ice cream" that's not junk food.

Azuki bars are basically just tsubuan thinned with some water and frozen into popsicles, easy to make if you can get your hands on azuki beans.