Halloween Reese’s Pieces Oatmeal Cookies

Halloween Reese's Pieces Oatmeal Cookies

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These Halloween Reese’s Pieces oatmeal cookies are super fun, easy and dare I say delicious! 😉 Every bite has a crunchy peanut flavour from the Reese’s pieces and is chewy, oaty and salty (from the pretzels). You’re going to love making these cookies for a spooky day ahead (and the recipe makes a lot)!


Units Scale
  • 1 cup unsalted butter, at room temperature
  • 1 cup brown sugar, packed
  • 1/2 cup granulated sugar
  • 2 large eggs, at room temperature
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 2 1/2 cups old-fashioned oats
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 1/2 cups Reese’s Pieces, plus extra for topping cookies
  • 1 1/2 cups salted pretzels, plus extra for topping cookies


  1. Preheat oven to 350˚F. Line 2 baking sheets with parchment paper and set aside.
  2. Break pretzels into large pieces and set aside.
  3. In a large mixing bowl beat butter and sugars together until light and fluffy. Add eggs and beat until well incorporated. Mix in vanilla.
  4. In a medium sized bowl add flour, oats, baking soda and salt. Mix to combine ingredients.
  5. Add dry ingredients to the butter mixture in two additions and beat until the dough comes together.
  6. Add Reese’s Pieces and mix to combine. Add broken pretzels in two-three additions and using a spatula fold the pretzels into the batter.
  7. Scoop or roll the dough into balls approx. 1-2 tablespoons in size and place onto the prepared baking sheet. Space each ball 2 inches apart (be careful not to overcrowd the cookies). Lightly flatten each ball with the palm of your hand. Add 2-3 Reese’s Pieces on the top of each cookie and a few broken pieces of pretzels.
  8. Bake for 8-10 minutes or until the cookies are just starting to lightly brown. You want the middle to be a little underdone. Bang the cookie sheet on the counter a few times to flatten the cookies. Let the cookies sit on the baking sheet for another 5 minutes to continue to bake. They will firm up as the cookies cool.


Store cookies in an airtight container for up to 4 days. Or freeze baked cookies for up to 2 months.


Keywords: Halloween, Cookies, Oatmeal Cookies, Reese's Pieces Cookies, Candy

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