Any recommended thin set adhesive will work for you. Next to using the apporpriate, notched trowel for application, the base to which you are applying the tiles is probably the most important part of the job. It should be solid and preferably at least 1/2 inch cement board on top of the substrate. Be sure to lay the tiles out dry to achieve the pattern you desire. Keep in mind the that granite and other natural stone tiles can be uneven in thickness which requires matching them to avoid one sticking out further that the others. Additionally, I would recommend an epoxy grout. It's easier to work with and, I think, easier to clean up, but avoid letting it dry on the tiles themselves... Be sure to consider sealing the tile if it's not polished by the manufacturer. Unpolished natural stones can be easily stained from grease and other contaminants, especially if the tiles are placed in the kitchen. Good luck! They will last longer than the house...