Bonessuch as chicken backs, pork neck bones, femurs or other bones of your choice
A certain amount of watergenerally, a weight equal to the bones is preferred, but you can go up to double
Aromatic vegetables and other ingredientsfor more complexity
Procédé
Immerse the bones and offal in the water.
Heat on high until the pot starts to boil.
Skim off the foam that rises to the surface.
Reduce the heat to maintain a temperature below simmering (about 88°C) to preserve the clarity of the broth.
Cook for the recommended time depending on the ingredients. (8h for beef, 6h for chicken/pork)
In the last hour, add the aromatics.
Strain the broth.
Notes
Use a cooking thermometer. Why is this important? If the boiling is too strong, the fat may emulsify and we would end up with a kind of "Paitan" broth, which is not the objective here If too much water evaporates, add enough to keep the bones fully covered