Preheat the oven to (350°F) = (176°C) degrees.
Cream the butter, brown sugar, eggs, and vanilla.
Stir in the flour, oats, baking soda, baking powder, and sea salt until blended.
Stir in the different chocolate chips or M&M's until blended.
Use a cookie scoop to place the dough on a greased cookie sheet or parchment paper placed on the cookie sheet.
Place the cookies 2 inches apart and bake for 12-14 minutes. These make a very soft, moist, and chewy cookie.