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Garlic Herb Chicken Breast with Mashed Potatoes

Garlic herb chicken with mashed potatoes—golden-seared chicken topped with a herb-flecked garlic pan sauce. Buttery, smooth mashed potatoes are mashed warm with cream and finished with a generous drizzle of sauce.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 servings
Course: Dinner
Cuisine: American
Calories: 650
Ingredients Equipment Method Notes

Ingredients
  

Chicken
  • 4 boneless skinless chicken breasts
  • 0.5 tsp Salt
  • 0.25 tsp black pepper
  • 0.5 tsp garlic powder
  • 0.5 tsp dried herbs
  • 2 tbsp olive oil
  • 3 tbsp butter divided
  • 5 garlic cloves, minced
  • 0.5 cup chicken broth
  • 0.25 cup heavy cream
  • 0.5 tsp Fresh thyme and rosemary
Mashed Potatoes
  • 2 lb Yukon gold potatoes, peeled and cubed
  • 4 tbsp butter
  • 0.5 cup warm heavy cream
  • 0.5 tsp Salt to taste
  • 0.25 tsp pepper to taste

Equipment

  • 1 cast iron skillet

Method
 

Make mashed potatoes
  1. Boil the Yukon gold potatoes in salted water over high heat for about 15 minutes, until completely tender. Visual cue: the cubes should break apart easily when pierced with a fork.
  2. Drain the potatoes, then mash until smooth while stirring in butter and warm heavy cream. Season with salt and pepper until creamy and lump-free, with a glossy texture.
Season and sear chicken
  1. Season the chicken breasts with salt, black pepper, garlic powder, and dried herbs. Visual cue: both sides should look evenly speckled.
  2. Heat olive oil in a cast iron skillet over medium-high heat, then sear chicken for 5–6 minutes per side until golden and cooked through. Visual cue: the edges should be deep golden with clear sear marks; transfer chicken to a plate.
Finish garlic herb pan sauce
  1. Melt the remaining butter in the same skillet over medium heat, then add minced garlic and cook for 1 minute. Visual cue: the garlic should become fragrant without browning too dark.
  2. Pour in the chicken broth and heavy cream, scraping up all the browned bits from the pan. Visual cue: the liquid should turn slightly darker and look cohesive as the fond dissolves.
  3. Simmer the pan sauce for 3–4 minutes until slightly thickened, then stir in fresh thyme and rosemary. Visual cue: the sauce should coat the back of a spoon.
Serve
  1. Serve the chicken over mashed potatoes, drizzling the garlic herb pan sauce generously over both. Visual cue: sauce should pool on the chicken and run slightly into the potatoes.

Notes

For smooth mashed potatoes, keep the cream warm so the mash stays creamy instead of cooling down and stiffening. Store leftovers covered in the refrigerator for up to 3 days; reheat gently in the microwave or on the stovetop with a splash of cream or broth. Freezing is not recommended for the mashed potatoes texture, but you can freeze the cooked chicken and sauce separately for up to 2 months. If you want a lighter option, use half-and-half in place of heavy cream for both the sauce and mash.