Place tomatoes into Thermomix bowl and cook 10 min/100°C/Reverse/speed 1.
Press cooled pulp through a fine sieve and separate solids from liquids. (See below for ideas to use solids) Reserve liquid to use in Umami.
Alternatively use 200g tinned tomatoes and proceed with recipe from this point. Place Parmesan and walnuts into clean, dry Thermomix bowl and mill 8 sec/speed 9.
Add all remaining ingredients and blend 30 sec/speed 4, scraping down as necessary.
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