Love your dedication. I'm Ivan's chef and wanted to fill you in on the vegetable fat. Let's make 1L of product. Ingredients needed: 18g kombu powder, 6g aonori, 6g chipotle powder, 1L canola oil, 100g whole peeled garlic cloves.
Using a heavy bottomed pot add canola and garlic and cook over low heat until garlic is beyond tender but do not allow caramelization.
Remove from heat and strain garlic. Reserve garlic for another use. Allow oil to cool and add remaining ingredients to oil. Use an immersion blender to disperse dry ingredients. Allow to sit 24 hours before use. Contents will settle so stir really well before using.