How to rehydrate dried mushrooms

Rehydrating dried mushrooms restoes them to something like their fresh texture, ready to use in a recipe.

You will see that there is more to it than simply leaving them to soak in water. At the same time, we can also make a delicious mushroom "jus" to use in recipes.

Throughout the recipe, I have used morels as the example, but the same applies to any other dried mushrooms.