Combine all broth ingredients in a medium sauce pan. Bring to a simmer over medium-high heat.
If you are adding any of the optional vegetables other than bok choy or green onions, add them now. Do not add sesame oil.

While broth is coming to a simmer add 2/3 of the shrimp and all the shrimp ball ingredients to the food processor. Pulse 4-5 times in 1-2 seconds pulses, until mixture looks like a chunky paste. Add remaining shrimp and pulse 2 more times.

When broth simmers start by making a "test ball". Scoop out 1 tsp of shrimp ball mixture. Cook for 2-3 minutes. Check for flavor and adjust to taste. Add bok choy now if using.

Once flavor is adjusted, scoop shrimp ball mixture by rounded tablespoon gently into simmering broth. Work quickly so not to over cook the first shrimp balls. Once all shrimp balls are added, turn off heat, cover and let rest 5 minutes before serving.

Stir in sesame oil just before serving. Garnish bowls with additional sesame oil and green onions if desired. Enjoy!