Preheat your oven to 350°F. Line a large rimmed baking sheet with parchment paper and set it aside.
Make the sauce.
In a medium-size, heavy-bottom saucepan, place the orange juice, chicken stock and flour, and whisk vigorously to combine, making sure the flour doesn’t clump at all.
Add the tamari, rice vinegar, garlic powder, chili powder, ground ginger and honey, whisking to combine after each addition.
Place the saucepan over medium-high heat and cook, whisking frequently, until the mixture begins to simmer. Continue to cook, whisking frequently, until the mixture is reduced by about 1/4 and has begun to thicken (about 6 minutes).
Remove the sauce from the heat and transfer it to a large heat-safe bowl. Allow the sauce to cool, whisking occasionally, until no longer hot to the touch.
The sauce can also be made, cooled, sealed tightly and stored in the refrigerator for up to 5 days before proceeding with the recipe.
Prepare the chicken.
Place about 1/2 of the cooled sauce in a separate, medium-size bowl. Place the raw, cubed chicken next to it, and a bowl with the bread crumbs next to that.
Dip the chicken pieces, one at a time, in the sauce on all sides, then in the bread crumbs on all sides, and place about 1/2-inch apart on the prepared baking sheet.
Place the baking sheet in the center of the preheated oven and bake for about 15 minutes or until golden brown all over and opaque throughout.
Remove from the oven and toss the cooked chicken pieces in the remaining sauce.