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Peanut butter cookie on a cooling rack
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Peanut Butter Cookie for One

 A giant, super soft peanut butter cookie for one. Filled with chocolate chips and Reese's Pieces - this single serving cookie is the perfect late night treat. Ready in under 20 minutes! 
Course Dessert
Cuisine American
Keyword Peanut Butter Cookie for One, Single Serving Peanut Butter Cookie
Prep Time 5 minutes
Cook Time 13 minutes
Total Time 20 minutes
Servings 1 very large cookie
Calories 1121kcal

Equipment

  • Cookie Sheet

Ingredients

  • 2 tablespoons unsalted butter (28 grams) melted
  • 2 tablespoons peanut butter
  • ¼ cup light brown sugar (50 grams) or 2 tablespoons white sugar and 2 tablespoons brown sugar
  • 1 large egg yolk discard the white
  • ¼ teaspoon vanilla
  • 6 tablespoons all-purpose flour (47 grams) level off the top
  • teaspoon baking soda
  • 4 tablespoons chocolate chips or Reese's Pieces or a combination

Instructions

  • Preheat the oven to 350F degrees and line a cookie sheet with parchment paper or a silicone baking mat.
  • Whisk together the melted butter, peanut butter and sugar until smooth.
  • Whisk in the egg yolk and vanilla extract. Be sure that you only add the egg yolk and not the entire egg.
  • Stir in the flour and baking soda until there are no lumps. When measuring the flour, make sure the tablespoon isn't heaping.
  • Stir in 3 tablespoons of chocolate chips/Reese's. You'll have 1 tablespoon left.
  • Form the cookie into a ball about 3 inches in diameter. Bake in the preheated oven for about 12-14 minutes or until the top of the cookie is set. 
  • Remove the tray from the oven and dot the remaining 1 tablespoon of chocolate chips or Reese's on top of the cookie.

Notes

  1. Peanut Butter: I highly recommend using smooth, commercial-style peanut butter for the best results. Natural and homemade peanut butter can separate, and lead to poor results. 
  2. For 2 Cookies: Divide the dough in half and bake for 10-12 minutes, or until the tops look just set. 
  3. Nutrition: Information provided is an estimate only and based on the entire cookie. 

Nutrition

Calories: 1121kcal | Carbohydrates: 136g | Protein: 19g | Fat: 58g | Saturated Fat: 28g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 16g | Trans Fat: 1g | Cholesterol: 254mg | Sodium: 352mg | Potassium: 356mg | Fiber: 5g | Sugar: 94g | Vitamin A: 1079IU | Vitamin C: 1mg | Calcium: 165mg | Iron: 4mg