01 -
In a large bowl, cream the softened butter and granulated sugar together using a mixer or wooden spoon until the mixture becomes light and fluffy.
02 -
Add the egg to the creamed mixture and blend thoroughly until completely combined.
03 -
Gradually incorporate the all-purpose flour into the mixture, mixing just until the dough forms. Fold in chocolate chunks and walnuts if using.
04 -
Portion the dough and roll into walnut-sized balls. Arrange evenly on a parchment-lined baking sheet, leaving space for slight expansion.
05 -
Preheat oven to 350°F. Bake dough balls for 12 to 15 minutes, or until golden brown. Allow to cool briefly before serving.