Wondering what to do with Zwieback? This guide covers how to pick it, cook it, store it, and swap it, plus 6 recipes to put it to work.

What is Zwieback?

Zwieback is a lightly sweetened bread that is baked once, sliced, then baked a second time until it is bone-dry and crisp all the way through. The name is German for "twice-baked," and that second bake is what gives it a long shelf life and a hard, snappable texture.

It sits somewhere between a cookie and a cracker: faintly sweet, lightly spiced with hints of nutmeg or cinnamon, and dry enough to keep for weeks. Generations of parents handed it to teething babies, and plenty of adults still dunk it in coffee.

In a kitchen its most useful role is as a crumb. Crushed fine, Zwieback makes a fragrant, slightly sweet base for cheesecake crusts and a crunchy topping for baked fruit.

How to Use Zwieback

The classic adult use is the simplest: a piece of Zwieback alongside coffee or tea, dry or briefly dunked so it softens just enough to bite.

Everything else starts with breaking it down.

For baking, treat it as a sweeter, sturdier alternative to graham crackers or plain cookies. Crush the pieces to a fine, even crumb in a food processor, or seal them in a bag and roll them with a rolling pin.

Bound with melted butter and a little sugar, those crumbs press into a tin to form a no-roll crust. Club Cheesecake with Zwieback Crumb Crust uses exactly this method, and Katish's Cheesecake leans on the same fragrant base under a rich filling.

Zwieback crumbs also work folded into batters and fillings. Karydopita, the Greek walnut cake soaked in syrup, uses them to give the crumb structure, and a spoonful tightens the fruit filling in Apple Date Strudel so it does not turn the pastry soggy.

Pairing and Common Mistakes

The gentle sweetness and warm spice of Zwieback flatter cream cheese, mascarpone, and dark coffee. It is a natural partner for cinnamon, pumpkin, apple, pear, and toasted walnuts.

The most common mistake is buying it expecting soft toast. Zwieback is meant to be hard. If you bite into it like fresh bread you will be surprised, but let it soften in liquid or grind it to a crumb and it behaves.

The second pitfall is uneven crumbs. Large shards refuse to pack and leave a crust that crumbles when sliced, so grind until the texture looks like coarse sand before adding butter.

Go easy on extra sugar in a crust, too. Zwieback is already sweetened, so a graham-cracker amount of sugar can push the base over the edge.

Substitutes

Graham crackers are the closest everyday stand-in for crumb crusts, with a similar sweetness and toasty note; use them gram for gram. Plain digestive biscuits or vanilla wafers work the same way.

For the dunk-in-coffee habit, biscotti or rusks are nearly the same thing under a different name, since both are also twice-baked and dry.

Melba toast is the savory cousin: just as crisp and twice-dried, but unsweetened, so it leans toward soups and cheese rather than dessert. Use it only where you do not want sweetness.

If you have only fresh bread, you can approximate Zwieback by slicing it thin and drying the slices in a low 250°F (120°C) oven until hard, though you will miss the sugar and spice unless you add them.

Buying and Storing Zwieback

Look for Zwieback in the baby-food aisle or the international section, often boxed as small oblong toasts. Brands vary from barely sweet teething biscuits to richer, spiced versions, so check the label if you want it for dessert work.

Because it is already dried, Zwieback keeps for a long time. Sealed in its box or an airtight container, it stays crisp for several weeks past opening and months unopened.

Its enemy is humidity. Once it absorbs moisture it goes leathery and stale-tasting, so keep the container tightly closed and away from the stove and sink.

A box yields roughly its own weight in crumbs, and as a rule of thumb six to seven ounces (about 170 to 200 g) of Zwieback grinds down to enough crumbs for one nine-inch crust. Crush only what you need; whole pieces keep far better than loose crumbs.

Quick facts

In Chinese

Zwieback

British (UK) term

Zwieback

en français

Biscotte

en español

Zwieback

Recipes using Zwieback

There are 6 recipes that contain this ingredient.

All 6 recipes