In a medium-sized saucepan over high heat, heat the water, butter, and cheese. Just as it starts to simmer, add the brick of ramen noodles. The noodles will unravel within a minute. With a pair of chopsticks or tongs, keep stirring the noodles until all the liquid is absorbed, about 3-4 minutes. Plate, generously sprinkle with freshly ground pepper, and serve immediately!