Japanese curry spice mix recipe

I was surprised to find out that Japanese curries were made using generally the same spices as Indian curries, considering that the flavours end up being so different. Anyways, here’s my take on an allergen-free Japanese curry mix, from base spices. (Allergen free since the boxed curries usually have dairy and wheat ingredients and possibly other allergens.)

Ratios
3 parts Turmeric
2 parts Coriander
1 part Cumin
1/2 part Cardamom
1/2 part Cinnamon
1/4 part Black Pepper
1/4 part Chili Powder