1cupplus 2 tablespoons all-purpose flour (measure by weight or use a light hand and aerate the flour well)(140 grams)
2teaspoonsdry milk powder
½teaspoonbaking soda
½teaspoonsalt
1cupbroken thick potato chips(40 grams)
½cupbroken pretzels(25 grams)
1cupsemisweet chocolate chips
40countmarshmallows, frozen or dehydrated
Instructions
In a small saucepan, cook the 9 tablespoons of unsalted butter over medium heat, stirring often, until the milk solids turn deep golden and fragrant.
Pour into a shallow bowl and chill until opaque and spreadable. You should have about 100 to 105 grams at this point.
While the butter is cooling and setting, whisk together the flour, milk powder, baking soda and salt. Set aside.
Combine the cooled and set brown butter with the sugar in a mixing bowl and beat on medium speed for 2 minutes. Scrape the bowl often, add egg and vanilla, and beat for another minute.
Add the vinegar and the flour mixture and stir until blended. The dough will be fairly dry.
Stir in the potato chips, crushing them slightly more as you stir. The pieces should still be fairly large. Stir in pretzels, and chocolate chips. You can also add a few dehydrated or frozen marshmallows if you'd like.
Using a medium size cookie scoop, scoop dough into balls that weigh between 35 and 40 grams each. Press tightly into the scoop to get them to hold together. You should get about 20 balls of dough.
Place on a plate or tray lined with plastic wrap, cover, and chill for an hour.
Preheat oven to 325°F
Space 1½ inches apart on a parchment-lined baking sheet.
Bake for 13–15 minutes, or until the cookies are uniformly golden and very flat.
Cool on the parchment for 3 minutes, then transfer to a wire rack to cool completely. Cookies will firm and crisp as they cool.