Indulge in these traditional Chinese Peanut Cookies, a Chinese New Year favorite. Easy to make, these cookies offer a perfect balance of sweet, peanutty flavor and a melt-in-your-mouth texture that's simply irresistible.
Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
Grind the peanuts in a food processor until finely ground. Do not overblend, or the peanuts will turn into peanut butter. Grinding in short pulses works best.
In a large mixing bowl, combine the ground peanuts, flour, powdered sugar, granulated sugar and salt. Mix well.
Pour in the peanut oil and use your fingers to gently knead the mixture until a dough forms.
Test the dough: Take about 1 teaspoon and squeeze it together in your hand, then gently roll it between your palms. If it crumbles too easily, add a little more oil (1 teaspoon at a time). The dough should hold together but still feel slightly dry rather than oily.
Roll the dough into small balls (about 1 teaspoon each) and arrange them about 1 inch apart on the prepared baking sheet.
Lightly brush the tops of the cookies with the beaten egg yolk.
Bake for 18–20 minutes, or until the cookies are lightly golden. Avoid overbaking, as the cookies will continue to firm up as they cool.
Let the cookies cool completely before storing or serving.
Notes
Avoid salted, sweetened, or coated peanuts, as they will affect the flavor and texture.A slightly drier dough will crack more during baking and produce a crumbly, less oily cookie. Add more oil only if you prefer a smoother finish.