Authentic Thai Yellow Curry Paste

Name: Authentic Thai Yellow Curry Paste
Prep time: 20 min
Total time: 20 min
Cuisine: Thai
Ingredients: 1/2 to 1 stalk lemongrass , minced; 1 to 2 yellow chilies, sliced; 2 shallots, sliced; 1 thumb-size piece of galangal, sliced; 4 cloves garlic; 1 teaspoon ground coriander; 1 teaspoon ground cumin; 1/2 teaspoon cumin seeds; 1/4 teaspoon ground cinnamon; 2 tablespoons fish sauce; 1/2 teaspoon shrimp paste; 3/4 teaspoon turmeric; 1 large pinch white pepper; 2 tablespoons brown sugar; 1 tablespoon lime juice; 1 tablespoon tomato puree; 3 to 5 ounces coconut milk, divided