• 1/4 onion, sliced thin
• 2 birds eye chilis, chopped small
• 1/2 cup vinegar
• 1/2 cup water, boiling
• 1 teaspoon sugar

To a tall, plastic container, add the onion, chilis, vinegar, water, and sugar. Mix gently and allow to sit for at least 10 minutes. Great with pho soup.