For the purest, smoothest blenderlising, you want to employ the non-invasive Coriolis Stir.
Milk to taste, hold the cup, spin round about 5-7 times, Keep an eye on the tea – for faster spins, you’ll have to angle the vessel in towards you to avoid loss.
Stop spinning, watch the magic. You might want to hold on to something so you don’t fall over and scald yourself on immaculately-agitated tea.
If you take sugar, you might find this method a little subtle for you, but the rewards of a well executed CS would be wasted on you anyway.