My travel partner also loves eel aside from dango, and so our next restaurant of course specializes in eel: Satsuma Jokiya Kagashi Yokocho.
And for those that want to bring back souvenirs you should visit: Satsuma Jokiya Kagashi Yokocho which has a lot of sweets and goods that go well with individuals or families.
These custard-filled ones were quite popular and also the baked donuts:
Cute packaging as well.
And if you decide to you can dine in to have some tea or coffee with the sweets:
My matcha tea latte.