To prepare the cashew chicken sauce, whisk together the water, soy sauce, hoisin sauce, brown sugar, cornstarch, rice vinegar, and sesame seed oil in a small bowl. Set aside.
Put cubed chicken and all-purpose flour in a large zip-top bag. Shake to coat.
Heat the olive oil in a large skillet over high heat. Add the coated chicken in a single layer. Cook the chicken for 5-7 minutes, until fully cooked, turning occasionally to brown all sides.
Add the sliced red bell pepper, minced garlic, and minced ginger. Cook and stir for about 2 minutes.
Pour in the cashew chicken sauce mixture. Cook for 2-3 minutes, until thickened.
Remove from heat and stir in the toasted cashews. Garnish with sliced green onions.
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Notes
One: Toasted Cashews
Put the cashews in a large skillet over medium heat. Cook and stir for 5-7 minutes until fragrant and lightly browned. Watch them carefully so that they don’t burn.
Two: Storage
Store leftover chicken in an airtight container in the refrigerator for 3-4 days or in the freezer for up to two months.