Reeses Peanut Butter Oatmeal Cookies

Here’s a soft, chewy Reese’s Peanut Butter Oatmeal Cookies recipe—loaded with peanut butter flavor and melty chocolate in every bite 🍪🥜

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Reese’s Peanut Butter Oatmeal Cookies

Ingredients (makes ~18–20 cookies)

• ½ cup unsalted butter, softened

• ½ cup creamy peanut butter

• ½ cup brown sugar

• ¼ cup granulated sugar

• 1 large egg

• 1 teaspoon vanilla extract

Dry Ingredients

• 1 cup old-fashioned oats

• ¾ cup all-purpose flour

• ½ teaspoon baking soda

• ¼ teaspoon salt

Mix-ins

• 1 cup Reese’s Pieces or chopped Reese’s Peanut Butter Cups

• Optional: ½ cup chocolate chips

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Instructions

1. Preheat oven

   • 350°F (175°C)

   • Line baking sheets with parchment paper.

2. Cream butter & sugars

   • Beat butter, peanut butter, brown sugar, and granulated sugar until fluffy.

3. Add wet ingredients

   • Mix in egg and vanilla until combined.

4. Combine dry ingredients

   • In a bowl, whisk oats, flour, baking soda, and salt.

5. Mix together

   • Gradually add dry ingredients to wet ingredients.

   • Fold in Reese’s and chocolate chips.

6. Scoop

   • Scoop 2-tablespoon-sized dough balls.

   • Slightly flatten (these don’t spread much).

7. Bake

   • Bake 10–12 minutes, until edges are set and centers are soft.

8. Cool

   • Let cool on the pan 5 minutes, then transfer to a rack.

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Pro Tips

• For extra chewiness, slightly underbake

• Chill dough 30 minutes if cookies spread too much

• Press extra Reese’s pieces on top before baking for bakery look

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Fun Variations

• Extra peanut butter: Add 2 tbsp more PB

• Chunky style: Use chopped Reese’s cups instead of pieces

• Healthier swap: Replace half the flour with oat flour

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If you want, I can give you a no-flour peanut butter oatmeal Reese’s cookie, a gluten-free version, or a giant bakery-style cookie recipe.