Divine Nutella Hazelnut Cookies

Line two large baking trays with baking parchment.

In a large bowl, combine 175 g Nutella, 150 g plain flour, 1 medium egg, 30 g chopped hazelnuts, and 1 tsp vanilla extract. Mix the ingredients together with a wooden spoon until a dough forms. If the dough feels a bit dry, add a few drops of water.

Transfer the dough onto a work surface and divide into 24 equal pieces. Roll each piece into a ball.

Arrange the dough balls on the prepared trays, spacing them evenly apart.

Gently press down each ball with the palm of your hand to flatten slightly. Optional: Sprinkle a small pinch of sea salt on top of each cookie. Chill the dough in the refrigerator for 1 hour, or until firm.

Preheat oven to 175°C (155°C fan).

Bake the cookies for 12-14 minutes, or until they are dry to the touch and firm around the edges.

Transfer the cookies to a wire rack and allow them to cool completely.

Spread 1/2 tsp of Nutella on the base of one cookie and press the base of another cookie on top, forming a sandwich. Repeat this process with the remaining cookies.

Enjoy your Divine Nutella Hazelnut Cookies!