Cook the egg noodles in a large pot of heavily salted boiling water for 8 to 10 minutes, until tender but still firm (al dente).
Drain them immediately.
In a large bowl, lightly whisk together the eggs, sugar, crumbled farmer cheese, salt, ½ tsp. cinnamon, and nutmeg.
Cut half of the total butter (2 tbsp / 28g) into small bits. Gently stir the drained noodles into the egg and cheese mixture, along with the cut-up butter.
Preheat the oven to 350°F / 175°C.
Place 1 tablespoon (15 ml / 0.5 fl oz) of the remaining butter in a medium-sized casserole dish and heat it in the oven until melted. Carefully remove the hot dish and tilt it to coat the bottom and sides. Spoon the kugel mixture into the prepared dish.
Sprinkle the top with a little more cinnamon and dot with the last tablespoon of butter.
Bake for 25 to 30 minutes, or until the top is golden brown and the custard is set.
Let rest for a few minutes before serving warm.
Don't overcook your noodles in the first step! They will continue to cook in the oven, and starting with al dente noodles prevents a mushy final texture.