Preheat oven to 350°F. Line a sheet pan with parchment paper.
In a large bowl, combine the peanut butter, sugar, baking soda and egg. Stir in the mini chocolate chips.
Shape into rounded tablespoons (I like to use a 1½ Tbsp cookie scoop for uniform size) and place on prepared sheet pan. Use your palm or the bottom of a glass to flatten the rounds into disks. Add more chocolate chips to the top of each cookie for better visual appeal, if you want. Bake until puffed and tops are starting to crack, about 8-10 minutes. Do not overbake! Let cool on the sheet pan 5 minutes, then transfer to a wire rack to cool completely.
Store cookies in an airtight container at room temperature for up to several days.
Calories: 180kcal, Carbohydrates: 19g, Protein: 5g, Fat: 10g, Saturated Fat: 3g, Cholesterol: 11mg, Sodium: 157mg, Potassium: 138mg, Fiber: 1g, Sugar: 16g, Vitamin A: 16IU, Calcium: 11mg, Iron: 1mg