Hy Vee Cream Soda in the blue/white can.
I remember as a kid going to Hy-Vee and they had their soda for $1 and I could pick out like eight cans. That was the first time I had cream soda and the can was white and blue and it made it taste crisp and cool LOL. Later I had cream soda for the first time from a&w and The brown tint of the can and the soda. It just not as refreshing. The Hy-Vee liquid was clear so as a kid it just really hit the spot
Im guessing it was similar to Shasta cream soda etc. The generic brand cream sodas all seem to be similar, sams choice, shasta, etc all are the clear and more crisp flavor. A&W is different than those.
I remember getting the generic versions, like Shasta as a kid and fell in love with it, too. But the A&W is not the same. So, if you can find a generic or store brand version, it will be closer to what you remember.
Also if you are in SouthEastern Minnesota area, give Spring Grove Pop a try.