Cook’s Illustrated’s Master Recipe

2 pounds potatoes, scrubbed (I used Yukon Golds)
8 tablespoons unsalted butter (1 stick, 4 ounces), melted
1 cup half-and-half , warmed
1 1/2 teaspoons table salt
Ground black pepper
Chives for garnish (optional)

1. Place potatoes in large saucepan and cover with 1 inch water. Bring to boil over high heat; reduce heat to medium-low and simmer until potatoes are tender (a paring knife can be slipped into and out of center of potatoes with very little resistance), 20 to 30 minutes. Drain.

2. Set food mill or ricer over now empty but still warm saucepan. Spear potato with dinner fork, then peel back skin with paring knife. Repeat with remaining potatoes. Working in batches, cut peeled potatoes into rough chunks and drop into hopper of food mill or ricer. Process or rice potatoes into saucepan.

3. Stir in butter with wooden spoon until incorporated; gently whisk in half-and-half, salt, and pepper to taste. Serve immediately.

3/4 cup créme fraîche
1 tablespoon prepared horseradish
Kosher salt and freshly ground black pepper

Combine the créme fraîche and horseradish in a small bowl. Season with 1/4 teaspoon salt and pepper. Taste for balance and seasoning.

Time: About 1½ hours plus 14 to 20 hours’ rising

3 cups all-purpose or bread flour, more for dusting
¼ teaspoon instant yeast
1¼ teaspoons salt
Cornmeal or wheat bran as needed.

1. In a large bowl combine flour, yeast and salt. Add 1 5/8 cups water, and stir until blended; dough will be shaggy and sticky. Cover bowl with plastic wrap. Let dough rest at least 12 hours, preferably about 18, at warm room temperature, about 70 degrees.

2. Dough is ready when its surface is dotted with bubbles. Lightly flour a work surface and place dough on it; sprinkle it with a little more flour and fold it over on itself once or twice. Cover loosely with plastic wrap and let rest about 15 minutes.

3. Using just enough flour to keep dough from sticking to work surface or to your fingers, gently and quickly shape dough into a ball. Generously coat a cotton towel (not terry cloth) with flour, wheat bran or cornmeal; put dough seam side down on towel and dust with more flour, bran or cornmeal. Cover with another cotton towel and let rise for about 2 hours. When it is ready, dough will be more than double in size and will not readily spring back when poked with a finger.

4. At least a half-hour before dough is ready, heat oven to 450 degrees. Put a 6- to 8-quart heavy covered pot (cast iron, enamel, Pyrex or ceramic) in oven as it heats. When dough is ready, carefully remove pot from oven. Slide your hand under towel and turn dough over into pot, seam side up; it may look like a mess, but that is O.K. Shake pan once or twice if dough is unevenly distributed; it will straighten out as it bakes. Cover with lid and bake 30 minutes, then remove lid and bake another 15 to 30 minutes, until loaf is beautifully browned. Cool on a rack.

Yield: One 1½-pound loaf.