When in doubt, ask about! I was in Amsterdam for a day en famille and needed somewhere nice to have lunch. So I thought I'd consult a trusted friend who worked locally. After a lot of "where's that again" and "no I didn't see it", I eventually found Gartine which was in a narrow alley off a main shopping street.
It's dinky and cosy. The menu was full of wholesome sandwiches made with locally sourced ingredients and beautifully dressed salads. I tried the tartare of marinated mackerel. Others had the freshly laid hen eggs in mayo. May be we were hungry, may be we were impressed, it all went down just too quickly. Then came desserts ... I asked our lovely waiter whether I should go for the white chocolate mousse or dark chocolate cake - he recommended the latter and you could see what arrived below! It's simply presented but packed full of flavours!