Ingredients

  • 1 12 cups all-purpose flour
  • 1 teaspoon baking soda
  • 12 teaspoon salt
  • 1 14 cups creamy peanut butter (Skippy or Jif)
  • 34 cup packed light brown sugar
  • 8 tablespoons unsalted butter, melted and cooled slightly
  • 12 cup light corn syrup
  • 14 cup granulated sugar
  • 1 large egg, plus
  • 1 egg yolk
  • 1 teaspoon vanilla extract
  • 13 cup dry roasted peanuts, chopped fine

Method

  • Combine flour, baking soda, and salt in medium bowl.
  • Whisk peanut butter, brown sugar, butter, corn syrup, granulated sugar, egg, yolk, and vanilla until smooth.
  • Stir in flour mixture until just combined.
  • Divide dough in half, wrap with plastic wrap, and refrigerate until firm, about 1 hour.
  • Adjust oven racks to upper-middle and lower-middle positions and heat oven to 350 degrees.
  • Line 2 baking sheets with parchment paper.
  • Roll 2 tablespoons chilled dough into 1 1/2-inch balls and place 2 inches apart on prepared baking sheets.
  • Using greased measuring cup, gently press each ball to 3/4-inch thickness and top with chopped peanuts, pressing lightly to adhere.
  • Bake cookies until puffed and edges are lightly browned, 12 to 14 minutes, switching and rotating sheets halfway through baking.
  • Cool 5 minutes on sheets, then transfer to wire rack to cool completely.
  • Repeat with remaining dough.