Went to Rinconcito Peruano (803 9th ave 333-5685) tonight for the first time in a while, and am happy to report that it's that rarity of rarities: a good restaurant that's actually improved.
They're now using fresh big corn (everybody else uses dried), chicha morada (blue corn drink) had uncommon depth, and the hot sauce has gone from very tasty to luscious. Tacu tacu (the meatless, fishless appetizer version) now contains a startling amount of garlic, and it's being served dry, more like a chaulafan. I could not put down my fork.
It's the same chef (I can taste her touch), so kudos to her for pushing forward. There are also a few new menu items
One negative: the aji de gallina (the most unusual menu item: a casserole with chicken, potato, ground walnuts, parmesan cheese and mirasol peppers) is now over-dominated by the parmesan cheese. Still delicious, but nowhere near as complex and subtle as it once was. Also, they've done something to the decor, and the place looks incredibly cheesey now. But who cares.
Anyway, it's confirmed...they truly blow away all other Peruvian food I've tried.