First, gather all of your ingredients.
The butter should be at room temperature and set the oven to 350 degrees.
Sift the flour, baking soda and the corn starch together and set aside.
Next, cream the butter, vanilla and the two sugars together.
Add in the eggs one at a time.
Then, add in the dry ingredients 1/2 a cup at a time.
Now, carefully stir in the chocolate candy.
Spoon out the batter and place in the freezer for 5 minutes.
Then, bake at 350 degrees for 13-15 minutes.
Done - let them cool on a wire rack and then eat up!