Kimchi Ramen

Ingredients 2 tablespoons canola, vegetable, or other neutral oil, divided 8 ounces shiitake mushrooms, stems removed and caps sliced Kosher salt 1/2 medium yellow onion, finely diced 1/2-inch piece fresh ginger, peeled and minced 3 medium cloves garlic, minced 6 cups gelatinous chicken stock 1/2 packed cup kimchi, chopped, plus 3 tablespoons kimchi liquid 1…