-Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius).
-Sift together the flour, baking powder, baking soda, and salt; set aside.
-In a medium bowl, cream the butter, oil, brown sugar, and white sugar until smooth.
-Beat in the eggs one at a time.
-Gradually stir in the sifted ingredients and blend until well combined.
-Stir in the oats and candy.
-Using a teaspoon or small cookie scoop, drop dough onto parchment-lined baking sheets.
-Bake for 10-12 minutes or until edges are golden brown.
-Cool for a few minutes on the baking sheets and then move the cookies to a cooling rack to continue cooling.
Notes
Store cookies in an airtight container at room temperature for up to 5 days.Baked cookies may be frozen if stored in an airtight container or freezer bag for up to 6 months.Cookie dough may be frozen for up to 3 months if wrapped well in several layers of cling wrap.