Chop the parsley but turning on the Thermomix to Speed 7 and dropping the leaves onto the spinning blades and then turning it off as soon as the last leaves hit the blades; remove to a bowl
Rinse out the Thermomix, add leeks and garlic and chop with the measuring cup (MC) on for 4 seconds | Speed 5
Scrape down the sides of the bowl, add olive oil (15g) and sauté with the MC off for 4 minutes | Varoma | Speed 1
Scrape down the sides of the bowl, add stock concentrate (30g) , 250g of water and milk (50g) into the Thermomix bowl and close the lid
Lay out the chicken thighs in a single layer on the Varoma tray and put carrots into the Varoma bowl; assemble and place on top of the Thermomix
Cook for 15 minutes | Varoma | Speed 2
Remove the Varoma, add broccoli to the Varoma bowl, assemble Varoma back onto the Thermomix and cook for 5 minutes/Varoma/Speed 2 (or until the chicken is cooked)
Remove the Varoma, add mustard to the Thermomix bowl and blend for 30 seconds – going slowly from Speed 1 to Speed 8
Stir parsley leaves through the sauce, season with salt and pepper and serve over the chicken and vegetables