Peter D.
Yelp
In an ideal world, I would be taller, smarter, better-looking, and own a brownstone in Carroll Gardens. I'd have enough time and money to sit in the sunshine outside Poppy's and eat delicious pastries and/or sandwiches every day. I'd read if alone, and converse about non-work-related things if not, sipping on excellent beverages they provide, and not taking care of my kids (in this world, they take care of themselves). 
This may not be an ideal world, but it's not so bad. I still get to occasionally sit in the sunshine outside Poppy's, eat and drink what they have on offer, and enjoy this perfect little cafe. 
Everything is pretty great thus far, but in particular:
The sea salt sprinkled chocolate chip cookie is one of the best you can find anywhere ($5, but actually worth it). 
The comically tall biscuit sandwich is tough to get your mouth around with the thick, fluffy biscuit, crispy prosciutto, white cheddar, greens, and hot honey...but it's so very, very tasty. 
And they have an adorable selection of products they make, or curate, including chili crisp and chili oil and snacks labeled "Poppy's" that I can get and give to one of my favorite nieces, whose name is Poppy. And then I can eat it all when I go to her parents' house, because she's three years old and definitely doesn't need chili crisp.