Lay the bread on a working surface. Top with about half the Kerrygold Aged Cheddar Cheese, then a layer of pear, then the rest of the cheese and a sprinkling of cumin seeds. Top with second piece of bread and press down to keep sandwich anchored together. Heat a nonstick frying pan or grilled cheese sandwich maker until hot. Spread half the butter onto the top of the sandwich, then turn over and spread second side. Alternatively, melt the butter in the pan. Add sandwich and cook over medium heat, then turn heat to low.
If desired, top sandwich with a heavy lid or other object to flatten and press sandwich as it browns. You want the bread crisp and the cheese melted, and pressing helps this. If you have no weight to use, simply press with a spatula from the beginning of its cooking time. If sandwich threatens to burn, turn heat down to very low. If sandwich seems too dry on the outside, add a little more butter. When gold and crisp and oozing melted cheese, remove from pan and cut into halves or quarters and eat right away!