You will need:
To make the orange butter, cream the softened butter with the finely grated orange rind. Then add the sifted icing sugar and beat the mixture until it’s fluffy. Add the Grand Marnier, if you’re using it. To serve, melt a large blob of the orange butter in the pan, add a few spoonfuls of the freshly squeezed orange juice and, one by one, toss each pancake in the foaming butter. Fold each tossed pancake in half and then in quarters, so that you have a fan shape.
Serve two pancakes per person on warm plates. Repeat until all the pancakes and all of the orange butter has been used.