Melt the butter in the Thermomix bowl for 3 minutes, 80 degrees, Speed 2.
Add the halved onion, garlic and thyme and chop for 6 seconds, Speed 6. Scrape down the sides of the bowl. Saute for 4 minutes, 100 degrees, Speed 1 (MC off but the splatter guard in place).
Add the mushrooms and saute for 6 minutes, 100 degrees, Speed 1 (MC off but the splatter guard in place).
Add the plain flour and the chicken stock liquid and cook for 10 minutes, 100 degrees, Speed 1 (MC off but the splatter guard in place). Note: do NOT exceed the MAX line.
Add the cream, season with salt and pepper and cook for 2 minutes, 80 degrees, Speed 1 (MC off but the splatter guard in place).
With the MC off and the splatter guard in place, slowly blend the soup by increasing to Speed 6 for 1 minute.
Serve with fresh parsley.
Notes
RECIPE NOTES & TIPS
Mushrooms - you can use white or brown mushrooms (or a combination).
Vegetarian Option - use vegetable stock liquid in place of the chicken stock liquid.
Soup Consistency - for a chunkier soup, blend by pressing Turbo until the soup has reached your desired consistency.
Do NOT exceed the MAX line - at no stage should you exceed the MAX line in the Thermomix machine. This is particularly important with the TM31 as the bowl is smaller than the TM5 and TM6. If you are close to the MAX line, use less chicken stock liquid.
MC OFF - for safety reasons, it's important to remove the measuring cup (MC) when cooking at very high temperatures. To avoid splatters, place the splatter guard or simmering basket over the top of the lid instead.
Store in an airtight container in the fridge for up to 3 days.
Reheat frozen soup in a pot on the stovetop or in the microwave.
Reheat defrosted soup in the microwave, on the stovetop or in the Thermomix.
Allow the soup to cool completely in the fridge and then freeze for up to 3 months.