Step 1

Preheat the oven to 375 degrees Fahrenheit.

Step 2

Place oats in a food processor or blender and blitz to a coarse powder. Place in a large bowl and sift in the flour, baking soda, baking powder, and salt.

Step 3

In a separate large bowl, add softened butter and granulated and brown sugars. Beat with an electric mixer until light and fluffy, about 5-7 minutes.

Step 4

Add the eggs, 1 by 1, followed by the vanilla. Beat for 10-15 seconds after every addition.

Step 5

Gradually pour the dry ingredients and beat just until well-combined. Gently mix in the chocolate chips, grated chocolate bar, and nuts with a rubber spatula.

Step 6

Roll the dough into 1-inch balls and place them on a cookie sheet, 2 inches apart. Bake for 10 minutes, or until golden brown.

Step 7

Allow the cookies to cool on the baking sheet for 10 minutes. Serve warm with a glass of milk. Enjoy!