Heat the milk in a microwave or small pan with the Nutella and whisk until melted. Leave to cool then whisk in the 2 tbsp butter, egg and sugar.

Put the flour, cocoa powder and baking powder in a bowl and mix in the salt. Gradually whisk the wet into the dry ingredients to make a batter. Tip into a jug.

Heat a large frying pan and brush with butter. Pour in batter to make small pancakes approx. 10cm across – cook until bubbles appear on the surface. Flip over and cook for another minute. Keep warm in a low oven while you make the rest.

To make the sauce, gently heat the ingredients in a small pan, whisking until shiny (add a splash of water if it's too thick). Pour over stacked pancakes to serve.