01 -
Bring a large pot of heavily salted water to a boil over medium-high heat. Meanwhile, halve the cherry tomatoes. Finely grate the Parmesan cheese. Finely grate the garlic cloves. Pick the leaves from the basil until you have 1 packed cup, then coarsely chop.
02 -
Place the tomatoes, garlic, olive oil, red wine vinegar, kosher salt, black pepper, and red pepper flakes (if using) in a large heatproof bowl and stir to combine.
03 -
Add the dried angel hair pasta to the boiling water and cook according to package instructions until just al dente. Transfer 1/4 cup of the pasta water to the bowl of tomatoes. Drain the pasta.
04 -
Add the pasta and Parmesan to the bowl of tomatoes. Toss with tongs until the pasta is evenly coated. Add the basil and toss again until combined.