Instructions: In a pressure cooker, cover yellow split peas with about 2 1/2 cups of water and cook on high pressure for 6-8 minutes.
Add remaining ingredients except cashews and nutritional yeast and cook on high pressure for 1 minute. Release pressure and blend soup with cashews in a high-speed blender.
Sprinkle with nutritional yeast before serving.
To make without a pressure cooker:
Precook the split peas until soft.
Combine cooked split peas with all remaining ingredients except cashews. Bring to a boil, reduce heat, and simmer until kale is tender (about 15 minutes). Add water as needed to achieve desired consistency. Blend with cashews in a high-speed blender. Sprinkle with nutritional yeast before serving.