Buttery Udon with Shiitake Mushrooms

They may seem an unlikely pairing, but sweet, creamy butter and bold, salty soy sauce are a fantastic flavor match. In this recipe, the duo adds richness and umami to Japanese udon, wheat noodles that cook up with a satisfying chewiness. Fresh shiitake mushrooms sautéed in butter bring a meatiness to the vegetarian dish and make it feel more complete. If you like, top each serving with a runny-yolked fried egg.