Welcome to this slow cooker/crockpot blog. I believe slow cookers are the best thing to happen to modern day cooks. I used mine often when I worked outside the home and continue to do so even in retirement. It is so nice to put food on and forget about it. Slow cookers also allow us to cook many things we would normally have to use the oven for; what a relief in hot Texas weather! Some of these recipes are mine, many are ones I have collected over the years.
Combine cornstarch and pepper in resealable food storage bag. Add chicken. Shake to coat with cornstarch mixture.
Heat oil in skillet over medium-high heat. Brown chicken about 2 minutes on each side. Place chicken in slow cooker.
Combine soy sauce, vinegar, ketchup, sweet chili sauce sugar, garlic, ginger, pepper flakes, and cashews in small bowl; pour over chicken. (I like my cashews to be softer so I add them during the cooking process, if you want more of a crunch, add them right before serving)