Heat Dutch oven over Medium Heat with the Oil and Onions. Cook for 3 minutes
Add the Curry Paste and Garlic. Cook for 5 more minutes
Add the Sweet Potatoes, Chicken Stock, Coconut Milk, Ginger and the Zest of 1 Lemon. Bring to a boil then lower the heat to a simmer and cook covered for 15 minutes
Remove half the Sweet Potatoes to a bowl. Use an immersion blender to puree the rest of the soup in the Dutch Oven. Add the reserved Potatoes back to the Pot. Stir in the White Pepper and Salt.
Serve garnished with chopped Cilantro and some slices of toasted crusty Bread
Recipe Notes
Maybe garish additionally with some toasted Pine Nuts