Fish broth concentrate with thermomix

Preparation

1. We peel the prawns and reserve the meat and put the shells and heads in our Thermomix bowl and crush
2. 5 seconds / speed 5
3. We put everything in a fine strainer and pressing with a spoon we remove all the juice from the prawns and reserve the juice
4. With a clean glass, add the juice that we had reserved, the peeled prawns and the white fish and grind everything
5. 10 seconds / speed 8
6. add the salt, remove the cup from the lid to evaporate and program
7. 10 minutes / 100ºC / speed 1
8. we remove the foam that has been produced and repeat another 10 minutes
9. 10 minutes / 100ºC / speed 1
10. then we grind
11. 20 seconds / speed 8
12. with the spatula we lower all the ingredients stuck to the sides and crush again
13. 20 seconds / speed 8
14. If we want it hydrated, it would already be. I like it more dehydrated and that it is dry and powdered
15. to do this
16. We preheat the oven to 150º C we put a baking tray covered with greaseproof paper, we transfer the vegetables from our Thermomix bowl to the baking tray and we evenly distribute the dough and bake
17. 90 minutes at 150º C
18. Let cool and then break the mixture into pieces with our clean and dry thermomix, put the pieces in it and program
19. 40 seconds / speed 8
20. Pour into an airtight jar and store in the refrigerator.