Cacio e Pepe Mashed Potatoes for Thanksgiving
A luxurious twist on classic mashed potatoes inspired by the Roman pasta dish cacio e pepe. This creamy, cheese-forward side combines buttery yellow potatoes with mascarpone, heavy cream, and generous amounts of Grana Padano for richness and depth. Cracked black pepper provides sharp, peppery bite that cuts through the dairy and it beyond traditional mashed potato territory. The dish balances smooth, velvety texture with bold seasoning, making it sophisticated enough for upscale holiday tables yet accessible to home cooks. Ideal for Thanksgiving or winter entertaining when you want a potato side that feels special without requiring advanced technique. The combination of two cheeses and three fats creates remarkable flavor complexity while the pepper-forward seasoning pays homage to its Italian inspiration, setting this apart from sweet or herb-based potato dishes.
Ingredients
- 2 pounds yellow potatoes, peeled
- 2 teaspoons salt, plus more to taste
- 4 tablespoons butter, plus more for serving
- 4 tablespoons olive oil, plus more for serving
- ⅓ cup heavy cream
- ½ cup mascarpone
- 1 ¼ cups Grana Padano or Parmesan cheese, grated
- 2 teaspoons cracked black pepper
Instructions
- 1
Peel the potatoes.
- 2
Place potatoes in a large pot, cover with water, season with salt, and bring to a boil over high heat.
- 3
Cook until tender, about 30 minutes, then drain.
- 4
Return potatoes to the pot and mash with a potato masher.
- 5
Add butter, olive oil, cream, and mascarpone, continuing to mash until smooth and combined.
- 6
Sprinkle with grated cheese and black pepper, stir to combine, and season to taste with salt.
- 7
Transfer to a serving bowl and top with remaining cheese and pepper. Optionally garnish with additional butter and olive oil.
Tips
Crack peppercorns by hand or with a spice grinder rather than using pre-ground pepper. Fresh-cracked pepper releases volatile oils that provide sharp bite essential to the cacio e pepe profile.
Keep potatoes and dairy warm before combining. Cold potatoes will cool the cream and mascarpone, making the mixture harder to mash smoothly and risking separation.
Reserve 1-2 tablespoons of potato cooking water before draining. Stir into the finished dish if texture becomes too thick when cooled.
Good to Know
Refrigerate in an airtight container up to 3 days. Reheat gently over low heat or in a microwave, stirring frequently and adding a splash of cream or broth to restore creaminess.
Prepare through mashing step 2 hours ahead. Finish with cheese, pepper, and final seasoning just before serving to ensure optimal pepper flavor and prevent the pepper from becoming muted.
Serve immediately while hot alongside roasted turkey, prime rib, or other holiday proteins. Complements herb-brined or sage-seasoned meats particularly well.
Common Mistakes
Boil potatoes at a rolling boil to avoid waterlogged, gluey results from extended cooking.
Avoid overmixing after adding dairy; excess agitation breaks down potato starch and creates a gluey, separated texture.
Add cheese and pepper at the end only; heat can dull pepper intensity and cause cheese to become stringy if folded in too early.
Substitutions
Dairy-Free Swaps
General Alternatives
FAQ
Can I make this ahead for Thanksgiving?
Yes. Prepare through mashing 2 hours early and refrigerate. Reheat gently over low heat with a splash of cream, then finish with cheese and pepper just before serving to preserve pepper bite and prevent separation.
What if I don't have mascarpone?
Creme fraiche works identically at a 1:1 ratio, offering similar tang and silky texture. Sour cream is thinner and sharper; use 1/4 cup plus 2 extra tablespoons of heavy cream. Avoid Philadelphia-style cream cheese, which won't mash smoothly.
Can I freeze cacio e pepe mashed potatoes?
Freezing is not recommended. Dairy-heavy mashed potatoes separate and become grainy when thawed due to fat and water molecules breaking apart. Refrigeration up to 3 days is best; reheat gently.