Dinner · Part 2 of 3: Instructions
Herb Butter Chicken with Creamy Mashed Potatoes and Roasted Carrots Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before you begin cooking, organize all your ingredients and equipment to ensure a smooth, stress-free process. Peel and quarter the potatoes, placing them in a pot of cold water so they do not discolor.
Peel the carrots and cut them into even sticks so they roast at the same rate. Pat the chicken breasts completely dry with paper towels to ensure a beautiful sear, and measure out your butter and fresh herbs. Preheating your oven now guarantees the carrots can go straight in.
Ingredients at a glance (5)
- 1.5 lb chicken breasts
- 8 tbsp butter, divided
- 2 tbsp finely chopped fresh herbs
- 2 lb potatoes, peeled and quartered
- 1 lb carrots, peeled and cut into sticks
Instructions
Preparing the Sides
- Roast the CarrotsToss the sliced carrots with one tablespoon of melted butter on a baking sheet. Roast in a preheated oven at 400°F (200°C) for 20 to 25 minutes until tender and caramelized.Look for The carrots should have lightly browned edges and slide easily off a fork.Tip Spread the carrots in a single layer with plenty of space so they roast instead of steam.
- Prepare the Mashed PotatoesBoil the quartered potatoes in water for 15 to 20 minutes until fork-tender. Drain the potatoes, then mash them thoroughly while incorporating four tablespoons of butter until completely smooth and fluffy.Look for The mash should be velvety, silky, and free of large lumps.Tip Heat the butter slightly before adding it to keep the potatoes warm and fluffy.
At the end of this phase, the carrots should be tender with beautifully caramelized, browned edges that smell sweet and earthy. The potatoes must be fork-tender and easily crushed, mashing into a smooth, fluffy, and steaming mound. They should look silky and hold their shape beautifully when scooped with a spatula, indicating they are ready to be covered and kept warm while you move on to the main protein.
Searing the Chicken
- Sear the ChickenHeat two tablespoons of butter in a large skillet over medium-high heat. Sear the chicken breasts for 6 to 8 minutes per side. Cook until the chicken is golden brown and reaches a safe internal temperature of 165°F (74°C). Transfer the chicken to a plate to rest.Look for The chicken should have a deep golden crust and feel firm and springy.Safe temperature 165°F (74°C) internal temperature (poultry)Tip Do not move the chicken during the first few minutes of searing to build a beautiful crust.
At the end of this phase, the chicken breasts will display a deep, golden-brown crust on both sides, and the kitchen will fill with the rich aroma of savory, pan-seared poultry.
When pierced with a meat thermometer at the thickest part, the internal temperature must register 165 degrees Fahrenheit (74 degrees Celsius). The meat should feel firm but springy to the touch, indicating it is cooked through and ready to rest.
Finishing the Herb Butter Gravy
- Simmer the Herb Butter GravyIn the same skillet used for the chicken, melt the remaining one tablespoon of butter over medium heat. Whisk in the chopped fresh herbs, scraping up the browned bits from the bottom of the pan. Simmer for 2 minutes to create a rich, glossy herb gravy.Look for The gravy should turn a glossy golden-brown and coat the back of a spoon.Tip Keep the heat at medium so the butter does not burn while the herbs release their fragrance.
At the end of this phase, the herb butter gravy will be bubbling gently in the skillet, turning a beautiful glossy, golden-brown color. The fresh herbs will release an intense, aromatic scent as they sizzle in the hot butter. The sauce should be slightly thickened, coating the back of a spoon smoothly, and ready to be generously cascaded over the sliced chicken and fluffy mashed potatoes.
Common mistakes
One common mistake is overcrowding the skillet when searing the chicken, which traps steam and prevents that beautiful, golden-brown crust from forming. Cook the chicken in batches if necessary to give each piece plenty of space.
Another error is overworking the mashed potatoes; using a food processor or blending them too vigorously will release excess starch, turning your fluffy mash into a gummy, gluey paste. Always mash by hand or use a ricer for the best results.
How to tell it’s done
To ensure your chicken is perfectly cooked and safe to consume, always use a digital meat thermometer inserted into the thickest part of the breast. The chicken is fully done and safe when it reaches an internal temperature of 165°F (74°C).
Avoid overcooking past this point, as chicken breasts dry out quickly. The roasted carrots are done when they can be easily pierced with a sharp knife, and the potatoes are ready when they slide off a fork with no resistance.
- Poultry: 165°F (74°C) in the thickest part
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)