Good any time of the year! My husband loves to grow pumpkins, so I have lots of pumpkin puree in my freezer, but canned puree works the same. Squash could also be used. The vinegar's purpose is to sour the milk and make these lighter. Yummy and filling!
The kids love this one. You could also make this in a jello mold-buttered and dusted with graham cracker crumbs if you want a fancier presentation. This is visually appealing, especially to kids! Obviously the jello flavors are interchangable; if you want you could use pineapple jello with pineapple juice for the creamy mixture.
These are really tasty meatballs! The gravy is super easy and would be great with mashed potatoes. As usual I use venison. I think this would be a good recipe for OAMC-to make the meatballs ahead and freeze until needed.