Put the first 7 ingredients into a medium saucepan over low heat. Mix well with a whisk and bring to a simmer.

In a small cup add the cornstarch and 3 to 4 tablespoons of water. Mix to combine, then add it to the sauce mixture. Slowly add 2 cups of water and continue to cook the mixture over low heat, stirring constantly until it has thickened to a syrup consistency.

Steam the chicken in a vegetable steamer over the bouillon liquid, in 2 batches. Cook until the chicken is tender. Remove the chicken to a cutting board.

Add 1 tablespoon of butter and the whole walnuts to a small frying pan over medium heat. Turn regularly until well toasted. Cool, then stir the walnuts into the sauce mixture. Put the sauce mixture over low heat and bring to a simmer.

Slice the chicken into bite-size pieces and add it to the sauce mixture. Transfer to a serving bowl and serve over hot rice or a mixture of white and wild rice.

Cook's Note: Refrigerate if not using immediately. Can be stored for 1 to 2 days.