Peel off a piece of the peel from the orange with the peeler, approx. 1 - 2 cm wide and approx. 5 cm or longer, tap lightly with the back of the knife and place in a tea glass. Also add the thinly sliced ginger slices.
Squeeze the orange and take about 2 tablespoons of juice, put the orange liqueur and cinnamon in a glass and fill up with hot water.