Heres what I am going to try this weekend!
Shrooms taste bad - make 'em taste great! This recipe is for one person, just double the amounts used for two people etc.
1) Bring 3cups of water to boiling point, reduce temperature until water is just simmering
2) Finely chop up your shrooms into small pieces and place into water
3) Let the shrooms simmer for around 15 minutes, dropping 3-4 tea bags into the water around the 10 minute mark. Stir regularly.
4) Using a coffee/tea filter or strainer filter out the chopped mushrooms into a large cup. To ensure you get all the psilocybin and psilocin out of the leftover shrooms, squeze them against the filter/strainer and collect all water into your cup. Pour a little boiling water over the left over shrooms and tea bags and squeeze again, collecting all water (No wasting the good stuff)
5) Discard of shrooms and tea bags
6) Add milk and sugar if desired, stir well
The effects are noticed considerably faster than when eaten

Have a shroomy time
Here the answer to the above question courtesy of erowid.
Tested for in Standard Drug Tests? NO
Tested for in Extended Drug Tests? Sometimes
Possible to test for? YES
Detection Period in Urine 1-3 days
Get busy living or get busy dying.