Gather all your ingredients and prep the vegetables by mincing the garlic, slicing the shallot, chopping the mushrooms, and chopping the greens. Set everything aside for easy access.
Heat a large pot over medium heat and add the toasted sesame oil. Once shimmering, toss in the minced garlic and sliced shallot, cooking until fragrant and slightly caramelized, about 2 minutes. You should smell a warm, nutty aroma.
Add the chopped mushrooms to the pot and cook, stirring occasionally, until they release their earthy aroma and turn a rich brown, about 5 minutes. They should look shriveled and fragrant.
Pour in water and add the dried kelp sheets. Bring the mixture to a gentle simmer over medium-low heat and let it steep for 20 minutes. You'll notice a slight shimmer on the surface and a deep oceanic scent filling the air.
Remove the kelp from the broth using a fine-mesh strainer. Stir in the miso paste, soy sauce, and sugar, whisking until fully dissolved. The broth will turn a cloudy, rich golden color and smell deeply savory.
Add the chopped greens to the broth and cook for 1-2 minutes until just wilted but still vibrant. They should remain crisp and bright, adding a fresh aroma to the broth.
While the broth simmers, cook the ramen noodles separately in boiling water for 2-3 minutes until just tender. Rinse under cold water to stop the cooking process and drain well.
Taste the broth and adjust the seasoning if needed—more soy for saltiness or a squeeze of lemon for brightness. Keep it warm over very low heat while you prepare to serve.
Divide the cooked noodles into bowls. Ladle the hot broth over the noodles, ensuring an even distribution of greens and mushrooms. Garnish with additional sliced scallions or sesame seeds if desired.
Serve immediately while steaming hot, enjoying the fragrant aroma, chewy noodles, and vibrant vegetables in each flavorful spoonful.
