Chef Helen Marie logoChef, Helen Marie

Cook mode · American · Holiday

20 lb Thanksgiving Turkey in a Domed Roasting Pan

A golden herb-butter Thanksgiving turkey for about 20 people, roasted unstuffed in a conventional oven using a rack and dome-covered roasting pan. Includes safe thawing, covered roasting, browning, thermometer checks and carving. Calories are approximate per serving, without sides or gravy.

45 min hands-on · 45 min hands-on; allow roughly 4 1/2–5 hr roasting plus 20–30 min rest. A dome lid can shorten roasting: begin checking at 2 1/2 hr and use 165°F in breast, thigh and wing, not the clock. Frozen turkey: about 5 days refrigerator thawing. Conventional oven only; follow your pan maker’s directions. · serves 20 · about 400 calories per serving

20 lb Thanksgiving Turkey in a Domed Roasting Pan

The finished dish — follow the cook-along below at your own pace.

Thaw safely in the refrigerator for 20 lb Thanksgiving Turkey in a Domed Roasting Pan
0:00Step 1 of 12
Thaw safely in the refrigeratorStep complete ✓

For a frozen 20 lb turkey, allow about 5 days to thaw in its wrapper on a rimmed tray on the bottom refrigerator shelf at 40°F or below. Check the cavity is fully thawed; allow extra time if still icy. Once thawed, cook within 1–2 days. Never thaw on the counter.

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On the counter

  • Whole turkey, fully thawed and unstuffed20 lb
  • Unsalted butter, softened1/2 cup (1 stick)
  • Garlic4 cloves
  • Fresh sage, chopped1 tbsp
  • Fresh rosemary, chopped1 tbsp
  • Fresh thyme, chopped1 tbsp
  • Kosher salt (omit for pre-brined or enhanced turkey)2 tsp
  • Black pepper1 tsp
  • Onions2 medium
  • Carrots3 medium
  • Celery3 stalks
  • Low-sodium turkey or chicken broth1/2 cup, plus a little extra if needed

Nutrition & balance

About 400 calories per person · serves 20

An estimate, not a nutrition label. Portions, ingredient brands and cooking methods affect the total.

To round out your plate

  • This is a richer dish; pair it with vegetables or fruit and choose a portion that suits you.

Ask a healthcare professional whether vitamin D, B12, iron or any supplement is appropriate for your diet and health needs; food is the first step. Choose organic ingredients when possible.

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Suggested sides

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