Potatoes au gratin with the 3 Thermomix cheeses

Preparation

1. When you have gathered all those ingredients, follow the steps below:
2. Peel the potatoes and cut them into slices and then put them in the basket.
3. Pour the water and milk into the glass and put the basket in the robot. Program a
4. speed 1 / 100º / 25 minutes.
5. Remove the basket and reserve the potatoes.
6. Reserve only a little of the liquid in the glass, the rest throw it away.
7. Clean the glass and add the mascarpone, blue cheese, pepper and salt as well as a splash of the reserved liquid. Program a
8. speed 5/5 seconds.
9. Part of the content of the glass pour it as the base of a source and on this base put the potatoes. Then the rest of the contents of the glass pour it over those. Sprinkle them with the grated Parmesan and place the dish in the oven, previously preheated. Keep it there for 15-20 minutes at 200º.