Sourdough is the best bread for stuffing and it is not a matter of taste. It holds its structure where soft sandwich bread dissolves, and its acidity cuts the richness of a dish that is otherwise butter, stock and bread.

Done properly you get three textures in the same spoonful: a crisp browned top, a soft custardy middle, and cubes that are saturated but still distinct. Soft white bread cannot give you the third one.

Why sourdough works

Two properties, both structural rather than flavor-based.

A stronger gluten network. Sourdough is made with a long fermentation and a wetter dough, which builds a more developed, more elastic gluten structure than a fast commercial loaf. When it meets hot stock, that network swells and softens but does not collapse, so the cubes stay identifiable. Soft sandwich bread has a weak, finely aerated crumb that simply dissolves, which is why supermarket-bread stuffing tends toward paste.

Acidity. The lactic and acetic acids produced during fermentation survive baking. In a dish built on butter, stock and fat, that faint sourness works exactly like the lemon in a rich sauce. It lifts the whole thing and stops it tasting heavy. It is the same reason a stuffing made with a good rustic loaf tastes more interesting than one made with a soft loaf, even before you account for flavor.

The bread has to be dry

The single most common cause of bad stuffing, and it is not a matter of degree. Fresh bread will fail.

Fresh bread is roughly 35 to 40 percent water. It cannot absorb much more, so when you add stock it saturates immediately at the surface and collapses. Dried bread is nearer 10 percent water, which gives it the capacity to draw stock deep into the crumb without losing structure. The cube ends up wet through and still standing.

Two ways to get there. Cube the bread and leave it out uncovered for two to three days, which is best. Or cube it and dry it in a 250°F oven for 40 to 50 minutes, turning once, until the pieces are dry all the way through. Not toasted, not colored, just dry. Break one open to check the centre.

What you need

Sourdough, butter, aromatics, stock and eggs. The eggs are structural.

• 1½ lb (about 700g) sourdough loaf, cut into ¾-inch cubes and dried, roughly 12 cups
• 1 stick (115g) butter, plus more for the dish
• 2 large onions, diced
• 4 celery stalks, diced
• 3 garlic cloves, minced
• 2 tablespoons chopped fresh sage, or 2 teaspoons dried
• 1 tablespoon fresh thyme leaves
• 1 tablespoon chopped rosemary
• ½ cup chopped parsley
• 3 to 4 cups (700 to 950ml) chicken or turkey stock, hot
• 2 eggs, beaten
• 1½ teaspoons salt, 1 teaspoon black pepper

Optional

• 1 lb sausage, browned and crumbled
• 1 cup toasted pecans or walnuts
• 1 cup dried cranberries
• 2 apples, diced
• 8 oz mushrooms, browned hard

How to make it

Dry, cook, combine, bake, rest. Seven steps in that order.

1. Dry the bread. Cubed and left uncovered 2 to 3 days, or 250°F for 40 to 50 minutes. It must be dry through the middle.
2. Cook the aromatics. Melt the butter in a large pan. Onion and celery with a good pinch of salt, 12 to 15 minutes over medium heat until completely soft. Do not rush this. Undercooked celery stays crunchy through baking and interrupts the texture. Garlic and herbs for the last 2 minutes.
3. Combine. Bread cubes into a very large bowl. Scrape over the vegetables and all the butter. Add sausage, nuts, fruit or mushrooms if using. Toss.
4. Add stock gradually. Pour over 3 cups of hot stock and fold. Let it sit 5 minutes so the bread can absorb, then assess. The cubes should be soft and saturated with no dry centres, and there should be a little liquid pooling at the bottom of the bowl. If not, add up to another cup.
5. Eggs and season. Fold in the beaten eggs, salt, pepper and parsley. Taste and correct now.
6. Into the dish. A buttered 9×13. Pile it loosely; do not press it flat. An uneven surface gives you peaks that crisp and valleys that stay soft.
7. Bake. 350°F, foil on, 30 minutes. Foil off, 25 to 30 more, until the top is deep brown and crisp and the centre is set.
8. Rest 10 minutes. It firms slightly as it settles.

The details that decide it

Small things that separate a great stuffing from a wet or dry one.

• Hot stock, not cold. Cold stock hits the melted butter coating the bread and sets it into flecks instead of distributing it evenly.
• Add stock in stages. Bread absorbs at different rates depending on how dry it is. Three cups then assess, rather than four cups and hope.
• Do not press it down. Compacted stuffing bakes dense and uniform. Loosely piled gives you crisp and soft in the same spoonful, which is the entire point.
• Bake it in a dish, not in the bird. Stuffing cooked inside a turkey must reach 165°F for safety, and by the time the centre gets there the breast around it is badly overcooked. It also never crisps. This is a solved argument.
• The eggs are structural. They set the whole thing so it holds a spoon shape. Leave them out and you have a very good pile of wet bread.

Variations

Same method. Different flavor profiles.

• Sausage and apple. The classic pairing. The fat and the acidity balance each other.
• Mushroom. Brown them hard and separately so they colour rather than steam. The vegetarian version, with vegetable stock.
• Cranberry and pecan. Sweet and crunch against the savory.
• Gluten-free. Same method, different bread. See gluten-free stuffing.
• Cornbread instead. A different dish with a different texture. See cornbread dressing.

Scaling for a crowd

Doubles well, but split it across two 9×13 pans rather than using one deep dish.

A deeper dish takes disproportionately longer to heat through, so the edges dry out badly before the centre is set. See Thanksgiving sides for a crowd.

Allow about ¾ cup per person. See Roasting Turkey? How Many Pounds of Stuffing for Thanksgiving? for the full working.

Make ahead, storing and freezing

Dry bread a week ahead. Assemble a day ahead. Bake on the day.

Dry the bread up to a week ahead and keep it in a paper bag at room temperature. Assemble the whole dish a day ahead, cover and refrigerate unbaked. Bring it out an hour before baking and add 10 minutes to the covered time.

It freezes assembled and unbaked for a month. Leftovers keep four days and reheat covered at 325°F with a few spoonfuls of stock added. See make-ahead Thanksgiving sides.

From my kitchen

The thing I would push hardest on is the stock quantity. Every time I have made stuffing that came out dry, it is because the bowl looked right before baking. A bowl that looks right before baking is a dish that will be dry after it. It should look slightly too wet, with liquid gathering at the bottom. The bread keeps drinking while it bakes.

Second: use the sourdough end pieces and crusts. They dry hardest, they hold up best, and they give you the chewy fragments that are the best bits of the dish.

Frequently asked questions

Is sourdough good for stuffing?

It is the best bread for it. The stronger gluten network from long fermentation means the cubes stay distinct instead of dissolving, and the acidity cuts the richness of a dish that is otherwise butter, stock and bread.

How dry does bread need to be for stuffing?

Properly dry through the middle, not just at the surface. Two to three days uncovered, or 40 to 50 minutes at 250°F. Fresh bread is already 35 to 40 percent water and cannot absorb stock without collapsing.

How much stock do I need for stuffing?

Three to four cups for a 1½ lb loaf. Add three cups first, let it sit five minutes, then assess. The mixture should look slightly too wet with a little liquid at the bottom of the bowl. It keeps absorbing while it bakes.

Can I make sourdough stuffing ahead of time?

Yes. Dry the bread up to a week ahead, and assemble the dish a day ahead refrigerated unbaked. Bring it out an hour before baking and add about ten minutes to the covered time.

Should I cook stuffing inside the turkey?

No. Stuffing inside the bird has to reach 165°F for safety, and the breast is badly overcooked by the time it does. It also never develops a crisp top. Bake it separately.

The bottom line

Sourdough, cubed and dried until it is dry in the middle. Onions and celery cooked to complete softness. More hot stock than looks right, added in stages. Eggs to set it. Piled loosely in a dish and baked uncovered at the end so the top goes properly brown.

Save this and cube the bread three days early — dry bread is the whole recipe.