Ingredients
Method
Mash the potatoes
- Combine the water, 1 tablespoon of the salt, and the potatoes in an 8-quart pot.
- Bring the potatoes to a boil over high heat, then reduce the heat to maintain a steady simmer and cook for 15 to 20 minutes, until the potatoes are fork-tender.
- Drain the potatoes well.
- Return the potatoes to the pot over low heat for about 1 minute, shaking the pot gently until excess steam subsides.
- Warm the milk and 4 tablespoons of the butter in a small saucepan over low heat until the butter melts and the milk is steaming; do not let it boil.
- Mash the potatoes with the warm milk mixture and 3/4 teaspoon of the salt until smooth.
- Cover the pot to keep the potatoes warm.
Make the gravy
- Melt the remaining 3 tablespoons of butter in a medium saucepan over medium heat.
- Whisk in the flour and cook for 1 to 2 minutes, until lightly golden.
- Gradually whisk in the chicken broth and beef broth until smooth.
- Whisk in the black pepper and remaining 1/4 teaspoon of salt.
- Bring the gravy to a simmer and cook for 4 to 6 minutes, whisking often, until thickened enough to coat the back of a spoon.
- Serve the gravy over the mashed potatoes.
Notes
For smooth potatoes, warm the milk and butter before mashing and avoid overworking the potatoes. Refrigerate leftovers for 3 to 4 days; freezing is not recommended because the texture may change. For a dairy-free variation, use dairy-free butter and unsweetened oat milk.
