Nagano local supermarketsTsuruyaOriginal food is the best.
Especially apple butter. Dressing is also delicious, and people from Nagano are really envious.
Although some products can be mail-ordered, it is still fun to select and buy in real shops. The side dishes and bread are also delicious.
It is worth going Karuizawa just to shop here. I wonder if I will go this time.