1 Beef fillet is seasoned with salt and white pepper. Heat the butter in the pan over medium heat, add the veal slices, and stir-fry for 3 minutes after the butter is completely melted.

2 Turn to low heat, evenly spread the flour into the pot and stir it with a wooden shovel until it does not bottom out, then add the chopped mushrooms, thyme and whole milk and simmer for 20 minutes.

3 Put the quick-frozen peas, small onions and light cream into the pot, continue to heat for 5 minutes, and then take out the fresh thyme.