Place the potato pieces in a large pot. Cover with cold water and add a tablespoon of salt. Bring the water to a boil. Then, reduce heat to medium and simmer for 20-25 minutes, until tender.
Drain the potatoes and press through a potato ricer (or mash with a fork or potato masher if you prefer).
Warm the milk and butter in the microwave. Add to the potatoes along with the garlic, kosher salt, and coarse ground black pepper. Stir until smooth.
Transfer to a serving dish. Top with melted butter and garnish with a sprinkle of thyme and black pepper.
Video
Notes
One: Roasted Garlic Substitutes
1/2 teaspoon minced garlic = 1 clove garlic
1/4 teaspoon garlic powder = 1 clove garlic
Two: Storage
Store cooled leftovers in an airtight container in the refrigerator for 3-4 days and in the freezer for 2-3 months.