Add in red pepper flakes, and cook a minute more.

加入红辣椒片，再炒几分钟。

youdao

Limit the amount of salt and butter you add, and consider adding herbs such as basil, oregano or red pepper flakes -- or even Parmesan cheese instead.

控制盐和黄油的量，可以考虑加一点香草，像罗勒（用于调味），牛至叶，红椒片等等，或者也可以加些帕玛森芝士。

youdao

And how about people who go to the pizza parlor and empty the red pepper flakes into a napkin to take home (another trait of Papa Hinz), along with most of the rest of the napkins?

有的人走进比萨饼店，把红辣椒粉倒进餐巾纸带回家(海因茨爸爸的另一特征)，同时还带走大部分余下的餐巾纸，你们怎么看待这些人？

youdao

Once the noodles are coated in that glorious sauce flecked with red pepper flakes, chopped parsley and scallions, seal them inside their parchment packets.

WSJ: Marc Vetri's Spaghetti in Parchment With Clams | Slow Food Fast