"Richard's Chicken--easy Instant Pot or slow cooker chicken with mushrooms in a savory, flavorful sauce. Tastes great over mashed potatoes or rice...."
INGREDIENTS
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2 Tbsp butter
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1 cup diced onion
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8 ounces mushrooms, sliced
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½ cup chicken broth
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2 Tbsp red wine vinegar
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20 ounces chicken tenderloins
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1 tsp poultry seasoning
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1 tsp kosher salt
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1 tsp black pepper
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1 tsp dried rosemary leaves
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1 tsp garlic powder
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1 Tbsp cornstarch