Place the broccoli florets in a medium bowl with 2 tablespoons of water. Cover with a plate and microwave for 2-3 minutes or until tender crisp.
Cut the chicken into bite-sized chunks and season with salt and pepper.
Heat oil in a large skillet over medium high heat. Add the chicken pieces and cook 3 minutes without stirring. Stir and continue cooking 4 minutes more or until almost cooked through. Remove chicken and set aside on a plate.
Add all sauce ingredients except cornstarch to the skillet. Whisk until bubbly and the brown sugar has dissolved.
Combine 1 ½ tablespoons cornstarch with 1 ½ tablespoons water and drizzle into the simmering sauce while whisking until thickened. You may not need all of the cornstarch.
Add the chicken back into the pan and simmer 2-3 minutes or until cooked through.
Place ¾ cup of rice in each bowl. Divide the chicken and broccoli over the bowls. Spoon any sauce overtop and garnish as desired.
