For the orange risotto, lightly fry the onion in fat.
Add rice, roast until translucent and pour 1/4 l orange juice. Continue stirring over medium heat until the rice has absorbed the liquid.
Add 1/8 l soup, cook, stirring constantly, until liquid is absorbed by rice. Gradually stir in remaining soup, season to taste. Before serving, stir in 2 tablespoons orange juice, butter and ginger.
Serve the orange risotto and garnish with orange slices.