This is my go-to when regular mashed potatoes feel too plain but I don't want to get fancy. The sharp cheddar and fresh rosemary make them taste way more expensive than they actually are.
Peel and wash 2 lbs Yukon gold potatoes, then cut into uniform halves or quarters.
Place potatoes in a large pot and cover with 2 inches cold water and add generous pinches of salt.
Bring to a rolling boil over medium-high heat and boil 18-20 minutes until fork tender.
Drain potatoes and cover colander with a plate to steam for a few minutes.
Mash potatoes until smooth using a masher, ricer, or hand mixer.
Immediately stir in 2 tsp minced garlic.
Stir in 8 oz grated white cheddar cheese one handful at a time until melted.
Add 6 Tbsp melted butter, 1/3 cup sour cream, 1 Tbsp minced rosemary, 1/2 tsp kosher salt, and white pepper to taste.
Add 1/4 cup warmed half-and-half, then add more one splash at a time until desired consistency is reached.
Taste and adjust salt and pepper as needed.
Notes
To reheat, preheat oven to 350F, spoon potatoes into greased dish with a splash of half-and-half, cover with foil, and bake 20-30 minutes until hot. Store in airtight container in fridge up to 3-4 days.
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