Serradura
A dessert associated with Macau, the former Portuguese colony, and popular in Portugal too. Its name means literally sawdust — after the look of the finely ground biscuits. It has three ingredients and no baking, so everything rests on two details. The biscuits must be ground to a true powder, not crumbs — coarse pieces never soften and stay as grit. And it must sit in the fridge at least four hours, so the powder soaks up the cream and softens.
Your own work in that: 10 min.
- Grinding the biscuits 10 min
- Whipped cream 10 min
- Chilling 240 min
Step by step
0 / 8 doneGrind the biscuits to a fine powder
Grind the biscuits in a processor to a powder the texture of flour, not crumbs. Not an exaggeration — coarser pieces do not take up moisture from the cream and after a few hours still feel like sand in the mouth.
Ingredients: 200 g butter biscuits · ½ tsp cinnamon
Powder like flour — the dessert is named for it.Sieve the powder and regrind the coarse bits
Sieve the ground biscuits and grind whatever stays in the sieve again. If using cinnamon, stir it into the powder now. Coarser crumbs give layers of uneven thickness, and the dessert looks careless in a clear glass.
Ingredients: 200 g butter biscuits · ½ tsp cinnamon
Chill the bowl and the cream
Put the bowl and whisk in the freezer for 10 minutes and keep the cream refrigerated until the last moment. Warm cream takes longer to whip and separates sooner — and this dessert then sits for hours.
Ingredients: 500 ml whipping cream (36%) · 200 g sweetened condensed milk · 1 tsp vanilla extract · 1 pinch salt
Whip the cream with condensed milk
Whip the cream with the condensed milk, vanilla and salt to stiff peaks — usually 3–4 minutes with a mixer. They should be stiffer than usual, because the cream must hold the layers. The condensed milk is the only sweetening and thickens the cream at the same time.
Ingredients: 500 ml whipping cream (36%) · 200 g sweetened condensed milk · 1 tsp vanilla extract · 1 pinch salt
Stiff peaks — the cream has to hold the layers apart.Do not overshoot the whipping
Stop when the whisk leaves a clear track and the peak holds. Half a minute too long and the cream begins to split into grains and butter — once lumps of butter appear, there is no going back.
Ingredients: 500 ml whipping cream (36%) · 200 g sweetened condensed milk · 1 tsp vanilla extract · 1 pinch salt
Start and finish with the powder
Into glasses spoon powder and cream alternately, beginning and ending with powder — three layers of cream and four of powder. Pipe the cream: a spoon smears it up the sides and the cross-section stops being clean.
Ingredients: 200 g butter biscuits · ½ tsp cinnamon
Three layers of cream, powder top and bottom.Level every cream layer
After each layer of cream tap the glass on the worktop so it levels and reaches the sides. Uneven layers show through the glass, and in this dessert the cross-section is essentially the whole decoration.
Ingredients: 500 ml whipping cream (36%) · 200 g sweetened condensed milk · 1 tsp vanilla extract · 1 pinch salt
Chill for four hours
Cover with film and chill at least 4 hours, ideally overnight. The powder absorbs moisture from the cream and turns into a soft, cake-like layer. Served after an hour it is still loose and tastes like cream and biscuits side by side. Just before serving you can grate a little lemon zest over the top.
Ingredients: 1 pcs lemon
Before you start
Butter biscuits, not filled ones
Classic serradura uses plain Marie-type butter biscuits — dry, barely sweet and neutral. Filled or chocolate-coated biscuits give a greasy powder that clumps and refuses to take up moisture from the cream.
No sugar beyond the milk
Do not sweeten the cream separately. The condensed milk supplies all the sweetness and thickens the cream at the same time — extra sugar makes it cloying, and a three-ingredient dessert lives on the balance between fat and a faint saltiness.
Two days in the fridge
Serradura keeps two days in the fridge and is at its best on the second, once the powder has fully soaked up the cream. By the third the cream begins to weep and the layers separate. Do not freeze — whipped cream turns grainy on thawing.

