Chicken and potato curry with rice

Ingredients

• 1/2 of skinless chicken breast
• 3 potatoes, peeled cut into cubes
• 1/2 onion, peeled and sliced
• cooking oil
• 200 ml water
• fresh chili paste for chicken curry
• 1 tsp of turmeric powder
• 1 tbsp of meat curry powder
• 1 tsp of brown sugar
• light soy sauce to taste