MB3 135a: Making Coffee or Tea on Shabbos (318:4 part 3)

Anything that can't be consumed without immersion in water can't be cooked on Shabbos.

Making tea is considered bishul. What, then, is the proper way to make tea (and coffee) on Shabbos?

עירוי כלי שני is problematic according to many achronim.

Can you put tea in a kli shlishi?