Defrost frozen shrimp by soaking in water for 10 minutes.

Drain the shrimp using a sieve to remove excess water.

Prepare 1/4 head of cabbage and 1 medium onion.

Boil water in a pot over high heat, then add cabbage and onion. Reduce to medium heat and cook for 7 minutes.

Add curry powder and mix well, cooking for an additional 3 minutes.

Pour in milk and stir for 1 minute over medium heat.

Add shrimp and cook for 1-2 minutes over medium heat.

Mix in ketchup and cook for 1 minute over medium heat.