Saute onions in 11T of butter and olive oil until golden. Set aside.
In stockpot, add water/powder (or broth), potatoes, celery. Bring to boil. Reduce heat, simmer 10 min.
Add broccoli, onion mixture. Simmer 20-30 minutes until veggies are tender. Add lemon juice.
Process to a course texture. Return to heat.
Begin heating coconut milk and milk to hot.
Make roux with remaining butter, flour. Cook on medium heat until golden. Whisk in hot milk mixture, stirring until thickened.
Add spices, djion, chili paste.
Mix milk mixture into soup. Bring back to simmer. Taste and adjust for salt. Add lemon-coconut cream for garnish.