Begin by preheating your oven to 350 degrees Fahrenheit.
In a mixing bowl, beat together the butter, brown sugar, white sugar, eggs, and vanilla until the mixture becomes light and fluffy. This typically takes about 2 to 3 minutes.
Now, add the flour, baking soda, and salt to the mixture, and blend everything together until well combined. Don’t forget to stir in half of the Reese’s candies.
Take teaspoonfuls of the dough and drop them onto an ungreased baking sheet. You can use the remaining candies to decorate the dough balls; just press them down slightly.
Place the baking sheet in your preheated oven and bake the cookies in batches until they are lightly browned with soft centers. This usually takes around 9 to 11 minutes.
Once they’re done, take the cookies out of the oven and get ready to enjoy!