Miso is made from fermenting soybeans, barley, chickpeas, or rice and is available in white, yellow, red and brown. Generally, the darker the miso the longer it has fermented and the more complex its flavor will be. Look for miso in the refrigerated section near meat substitutes.
Variations:
For Gluten-Free: Use gluten-free soba noodles, or simply your favorite gluten-free noodle brand. Avoid miso that is fermented with barley.
For Soy-Free: Believe it or not, not all miso is soy-based. Seek out a rice, chickpea, or barley version and verify the ingredients.
Diet Type: Dairy-Free, Egg-Free, Nut-Free, Peanut-Free, Sugar-Free, Low-Fat, optionally Gluten-Free, optionally Soy-Free