Bratwurst Potato Bun

Slightly oil 2 rice bowls. Sauté sauerkraut and Bratwurst in a little oil for 2 to 3 minutes. Set aside. Mix rice flour, potato starch, water, brown mustard, salt and pepper. Pour into a pan, cook over low fire, stirring. As soon as the mixture starts to thicken, turn off the heat and keep stirring. Fill each bowl halfway with rice mixture. Divide the Bratwurst into both bowls. Top the Bratwurst with the rest of the rice mixture. Steam for 10 to 15 minutes. Let cool a little and serve inside the bowl or turn onto a plate. Top with optional mayonnaise and ketchup.