Pull back the curtain at 50 Frith St and you’ll see a cosy counter bar with udon noodles simmering away in the background. Made fresh daily, the bright white, bouncy udon comes in four ways: hot udon in hot broth, cold udon with hot broth, cold udon with cold sauce for dipping, or cold udon with cold sauce for pouring. Order the mushrooms with walnut miso for an addictive umami bowl, or the prawn tempura if you like a little crunch.