Pat-dry the steak. Rub the chipotle paste all over and rest unti you make the salsa.
Cut the cherry tomatoes in half, slice the onion.
Heat a spoonful of oil in a frying pan and sauté the onion until soft. Add the tomatoes and cumin, cook for a couple minute, stirring. Add the lime juice and Chipotle paste and cook for 5 minutes under cover.
When the tomatoes are tender and about to collapse, stir in the choppedcoriander, season with salt &pepper. Put the lid on, turn off the heat and rest.
Meanwhile, oil & heat a griddle pan or turn on your BBQ. Season the steak, then cook for 2-3 minutes on each side to your liking. (Minute steaks need even less time!).
Rest the steak for a couple of minutes on a plate (covered with another plate) then serve with the warm salsa and a squeeze of lime juice. Garnish with fresh coriander leaves.