1 1/2 cups heavy cream
Bring the heavy cream to a simmer over medium heat in a small saucepan. Place the hazelnut spread and chocolate chips in a heatproof bowl. Pour the heavy cream over the chocolate and allow to sit for 30 seconds. Whisk together until smooth. Add the liqueur and continue to whisk until incorporated.
Serve with an assortment of fruit and cookies for dipping.