Heat oil in a pan, fry onion and remove.
Add red chilies, green chili, ginger, garlic, coriander seeds, lemon juice, sugar, peanut, basil, curry paste and salt. Stir it.
Now add beef, coconut milk and cream; cook for 10 minutes. Then add fried onion and cook for 2 minutes.
Dish out and serve with garlic rice.
Note: At the end check spices and adjust chili taste according to taste by adding curry paste.