Sweet and sour shrimp

Ingredients

• 340 g (3/4 lb.) raw shrimp (31-40), peeled and deveined
• 1 clove garlic, minced
• 10 ml (2 tsp.) fresh ginger, minced
• 30 ml (2 tbsp.) vegetable oil
• 2 carrots, thinly sliced diagonally
• 2 celery stalks, thinly sliced diagonally
• 1 red onion, chopped
• 1 green pepper, cut into 1.5-cm (1/2-in.) pieces
• 1 pouch SUWONG garlic spare ribs sauce mix
• 10 ml (2 tsp.) cornstarch
• 250 ml (1 cup) water
• 30 ml (2 tbsp.) tomato ketchup
• 2 green onions, thinly sliced diagonally