½cup(113grams)salted butter, softened to room temperature
½cup(105grams)light or dark brown sugar
½cup(100grams)granulated sugar
1large egg
1teaspoonvanilla extract
1 ¾cup(180grams)all-purpose flour
½teaspoonbaking soda
¼teaspoonbaking powder
½teaspoonsalt
½cup(48grams)old-fashioned oats
½cup(85grams)semi-sweet chocolate chips
½cup(56 grams)chopped walnuts
Instructions
Preheat oven to 350°F and line a sheet pan with parchment paper or a silicone baking mat.
With an electric mixer, beat the peanut butter, butter, brown sugar and sugar on high speed until light and creamy, 2-3 minutes, scraping down the bowl once.
Add egg and vanilla and mix until combined.
Add flour, baking soda, baking powder and salt and mix until just barely combined. Add oats, chocolate chips, and walnuts and mix on low just until combined.
Use a medium cookie scoop or spoon to measure out cookie dough and place on prepared pan.
Bake until they cookies appear set and just start to turn brown, 12-13 minutes.
Let cool on the sheet pan for at least 5 minutes before transferring to a wire rack to cool completely.
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