Ummmmm. That spinach salad sounds wonderful. Being from Kentucky, we always boil our spinach in just barely enough water to cover and then add a little bit of vinegar. Depending on what kind of vinegar you use, you can vary the flavor. However, just plain old vinegar is what everyone uses mostly. Of course, you can top it with a few slices of hard boiled egg. I'm not sure why we do that other than mostly for decoration. Looks good on the dark spinach. The thing is that you have to eat the juice too because some of the nutrients end up there. Delicious!!! We didn't have blueberries but we had wild blackberries (both red and black) fresh off the vine. And THAT is a taste that nobody can improve upon (in my humble opinion). Carole & Ted :-o