Step 1: Preheat the Oven. Begin by preheating your oven to 350°F (175°C).
Step 2: Cream the Butter and Sugars. In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy (2-3 minutes).
Step 3: Add Nutella and Eggs. Add Nutella, eggs, and vanilla extract to the butter mixture. Mix until smooth.
Step 4: Incorporate Dry Ingredients. Whisk together baking soda, baking powder, and flour in a separate bowl. Gradually add to the wet ingredients.
Step 5: Fold in the Goodies. Gently fold in chocolate chips, chopped nuts, and Kraft Mallow Bits.
Step 6: Scoop the Dough. Using a spoon or cookie scoop, drop rounded tablespoons of dough onto the prepared cookie sheet.
Step 7: Bake. Bake for 10-12 minutes until the edges are set and the tops look slightly underbaked.
Step 8: Cool and Enjoy. Allow cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack.