Bring the water, butter and salt to a boil in a medium saucepan. Sift the flour and add it to the saucepan at once. Stir vigorously until the dough comes together in a lump. Remove from heat and add the grated cheese. Let the dough cool down a bit, then add the eggs, one at a time, and stir until smooth. Using a pastry bag with a star-shaped tip form small mounds, about thumbnail size and place them on cookie sheet lined with baking parchment. Bake in a preheated oven at 350 degrees F until golden brown, about 7-8 minutes.