Lithuanian Kugelis

Preheat an oven to 350 degrees F (175 degrees C).

Place bacon in a Dutch oven over medium heat. Cover and cook until bacon begins to soften and render grease. Add onion and cook until soft and translucent. Remove the cover, and continue cooking until mixture caramelizes and turns a deep, golden brown.

Remove from the heat and stir in butter until melted. Stir shredded potatoes into onion mixture. Add evaporated milk and eggs, and stir until well combined. Pour into a 9x13-inch baking dish.

Bake in the preheated oven until bubbly and golden on top, about 1 hour. If top browns too quickly, cover with foil. Remove and let stand for 10 minutes before slicing into 3x3-inch squares. Serve hot.