There are three techniques.
1. The method you mention, ie crab. A little more difficult, but not too much so unless the cross wind is close to the aircraft limits. Personally, I like to put the aeroplane down on both main wheels at one. Don't forget you may need a little in to wind aileron on roll out.
2. Wing down. Favoured by many in the USA. One merely flies down the glide slope with in to wind aileron applied which means touching down on one wheel. This technique will not be safe if flying aircraft with a very long wingspan, especially on low wing aeroplanes.
3. A combination of 1 & 2.
Of course. if the cross wind is 50 knots or so, one can always land into wind across the runway with a ground speed of 10 knots or so
