If you want to tile over a laminate counter, the counter has to have a flat edge. Counters with rounded edges cannot be tiled over. The laminate cannot be peeling or chipped off and needs to be in decent condition.

I started by sanding the counters with 60 grit sandpaper. Sanding the countertop surface will help the tile stick better.

I used a product called the Simple Mat to adhere the tile on top of the laminate. Simple Mat is basically double-sided tape that you stick on the wall or counter to adhere the tile to the surface instead of using thin set mortar. You stick the tile on top of the Simple Mat and you can grout immediately.