Chill the Nutella

• Spoon small mounds of Nutella onto a lined tray or plate.
• Freeze until firm so they are easy to wrap in dough.

Make the cookie dough

• Cream the softened butter with the brown sugar and granulated sugar until light and fluffy.
• Beat in the egg and vanilla extract.
• Whisk the flour, baking soda and salt together, then mix into the wet ingredients until just combined.
• Fold in the chocolate chips.

Stuff the cookies

• Take a portion of dough, flatten it in your palm and place a frozen Nutella mound in the centre.
• Seal the dough around the Nutella and roll into a ball, making sure there are no gaps.

Chill the dough balls

• Place the stuffed dough balls on a tray and refrigerate so they hold their shape while baking.

Bake

• Preheat the oven to 180 °C and space the dough balls on a lined baking tray.
• Bake until the edges are set but the centres are still soft.

Cool and serve

• Let the cookies cool on the tray for a few minutes so the filling sets slightly.
• Transfer to a rack and serve while still warm.