Best Chewy Peanut Butter Cookies of All Time

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Crunchy on the outside, moist & chewy on the inside: these are the best chewy peanut butter cookies, hands down!

The secret to the chewiness is from a pro who knows, pastry chef Anna Olson. On her cooking show Baked she taught that it’s the corn starch and brown sugar that makes a chewy peanut butter cookie. They absorb the moisture and keep the centers their chewy goodness. I added these ingredients to my favorite peanut butter cookie recipe & she was absolutely right! (Of course.)

pastry chef Anna Olson

Anna Olson has a new baking podcast Oh Yum! Her award-winning cookbook Baking Day available on Amazon.

Baking Day with Anna Olson Cookbook

Cookie utensils that make baking cookies easier.

cookie lifter

Use a cookie/brownie lifter with a beveled edge so your cookies don’t get smushed. On Amazon.

cookie scoop

An easy-release scoop makes uniform cookies & for meatballs, devilled eggs and more. On Amazon.

Both items are also available at your local dollar store.

Best Chewy Peanut Butter Cookies of All Time

  • ½ c butter (room temperature)
  • ¾ c packed brown sugar
  • ¼ c sugar
  • ½ c peanut butter
  • 1 large egg (room temperature)
  • 1 tsp vanilla extract
  • 1¼ c flour
  • 2 Tbsp cornstarch
  • ½ tsp baking soda
  • ½ tsp salt
  1. Preheat oven to 350°F
  2. Line baking sheets with parchment paper.
  3. Cream the butter, brown sugar and sugar together until the mixture is fluffy.
  4. Beat in peanut butter, egg and vanilla.
  5. Combine flour, cornstarch, baking soda and salt in a bowl.
  6. Gradually add the flour mixture to the butter mixture on low speed until blended.
  7. Using a cookie scoop, drop 1 Tbsp of dough on cookie sheets, leaving lots of room for spreading.
  8. Dip a fork in flour and make criss cross marks when flattening.
  9. Bake for 12 minutes or when edges are slightly browned. (Don’t bake too long or they will be too hard.)
  10. Let cookies cool on the sheet for 5 minutes. (If you don’t they will crumble.)
  11. Transfer to a plate or rack to cool completely.
  12. Store in an airtight container for up to 3 days.

It’s hard to believe the difference brown sugar and cornstarch makes to this recipe! Try it, and see for yourself.

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