Marissa Allen, co-owner of Cookie Society bakery, shares her recipe for these thick, chewy holiday treats.

This recipe originally appeared in our Holiday 2020 issue. Get the magazine here.


Credit: Photography by Arturo Olmos

Recipe Summary test

1 hr
Makes 9 cookie bars


Ingredient Checklist


Instructions Checklist
  • Preheat the oven to 350°. Line an 8-by-8-inch baking pan with parchment or spray with cooking spray.

  • In a large bowl, using an electric mixer, mix the butter and sugars until pale in color, about 4 minutes. Mix in the egg and vanilla.

  • In a medium bowl, whisk the flour, baking powder, and salt. Gradually add the flour mixture to the butter mixture, mixing until just combined. (Do not overmix.) Using a silicone spatula, gently fold in the butterscotch chips.

  • Spread the batter in the pan and bake until the top starts to crack, 30 to 35 minutes. Let cool completely in the pan.

  • To make the glaze, in a medium bowl, mix the confectioners’ sugar and milk until smooth, adding a splash more milk if needed to thin the glaze. 

  • Unmold the cookie and turn it right-side up onto a work surface. Drizzle with the glaze. Let the glaze firm up a bit, then cut into bars.