No. 46 · Dessert · Any · Intermediate

Alfajores

Cornstarch Shortbread & Milk Dulce de Leche

Pale cornstarch shortbread that crumbles tenderly around a milk-caramel seam, rolled in fine coconut.

18serves

7 h 45 minthis page

1 h 26 minhands-on

12dishes

4 dmake ahead

Measurements

These are the cookies that never make it to the end of a gathering. Someone always circles back for a third. A porteña friend taught me the maicena version her grandmother made in Buenos Aires: pale, sandy discs that dissolve on the tongue, glued together with dulce de leche and hedged in coconut. You make a big tray, you set them on the table, and you watch the pile disappear while everyone talks over each other.

Cooking around dairy, gluten, wine, meat? tap to adjust

The Tools

Kitchen scale · The cornstarch-to-flour ratio is the whole cookie. Weigh, don't scoop
Stand or hand mixer + bowl
Rubber spatula
Fine-mesh sieve or sifter · Cornstarch clumps; sift it or you get chalky pockets
Rolling pin
2-inch round cutter (or a small glass)
Two sheet pans
Parchment paper
Wire rack
Baking dish or metal pie pan (for the dulce) (optional)
Larger roasting pan (water bath for dulce) (optional)
Whisk
Piping bag or small offset spatula
Shallow bowl (for the coconut roll)

✚ ends up in the sink · essentials unless marked optional

Coconut Dulce de Leche

Yields About 340g dulce; 270g fills eighteen sandwiches, with a small reserve Make 0-4 days ahead

Why this works Gentle uncovered-can cooking in a covered dish lets condensed milk brown into a thick caramel without pressure inside sealed metal. The water bath moderates the heat; top it up before it dries. One 397g can makes enough for eighteen measured fillings and a small reserve. The coconut-condensed alternative uses the same weighed amount but may finish paler; texture, not a forced dark color, decides the endpoint.

397g Sweetened condensed milk 397 g · Sweetened condensed dairy milk; weigh the portion.

Set the water bath 5 min hands-on

Heat the oven to 425°F. Pour 397g sweetened condensed milk into a small oven-safe dish, add a small pinch of salt and cover with foil. Set inside a larger roasting pan and pour hot water halfway up the inner dish.

Take care The milk is removed from its can before heating. Keep bathwater outside the milk and top up with hot water as needed.
Bake to amber 8 min hands-on · 1 h 30 min wait

Bake about 75-110 minutes, whisking every 30 minutes and topping up the bath. Stop when golden-caramel colored and thick enough to hold a soft mound after a spoonful cools.

Look for Glossy caramel that leaves a clear whisk trail; a cooled spoonful holds its shape.

Take care Do not force a particular dark shade if the caramel already tastes roasted and holds. Acrid flavor cannot be rescued.
Whisk smooth and cool 3 min hands-on · 2 h wait

Whisk smooth, transfer to a shallow clean container, cover the surface and refrigerate promptly until cold, at least 2 hours. Use within four days or freeze the extra.

Look for Cooled and chilled, it holds a soft peak on a spoon, like thick caramel frosting.

When it goes wrong

Problem	Cause	Fix
Grainy or bitter	Cooked past amber or bath dried out	No rescue once scorched; next time pull at amber-tan and keep the outer water topped up
Too runny to fill	Underbrowned or not chilled	Chill it hard; if still loose, cook 15 more minutes and re-chill. The cold does half the setting for a dulce
Skin formed on top	Foil lifted or torn during baking	Whisk the skin back in while warm; it dissolves

The Cookies

Yields ~36 rounds (18 sandwiches) Make 0-2 days ahead

Why this works A large share of cornstarch limits gluten development and gives these cookies a tender, sandy bite. Softened butter and yolks bind the dough without making it chewy. Keep all versions about 6mm thick so the count and bake stay comparable, and transfer fragile rounds on a spatula. Bake until set but pale; raw starch tastes chalky, while heavy browning dries the cookie.

200g (about 1 2/3 cups), sifted Cornstarch (maicena) 200 g · The big number here is the point; sift out lumps
100g (about 3/4 cup + 1 tbsp) All-purpose flour 100 g
140g Unsalted butter 140 g · Use unsalted butter, 82% fat for laminated pastry. Follow the step for cold, softened or melted butter.
90g (3/4 cup), sifted Powdered sugar 90 g · Powdered, not granulated; it keeps the crumb fine and dissolves fully
3 large, room temperature Egg yolks · Yolks only; save the whites for another use
1 tsp, fine Lemon zest · Or orange; a quiet brightness, not a lemon cookie
1 tsp Vanilla extract
1 tsp Baking powder · A whisper of lift so they set light, not dense. No baking soda: with no acid in the dough it turns soapy and raises the pH, which pushes browning, the one thing these cookies must not do
1/4 tsp Kosher salt

Cream butter and sugar 4 min hands-on

Beat the softened butter and powdered sugar on medium 2-3 minutes until pale and fluffy. You're not chasing volume, just a smooth, aerated base.

Look for Uniformly pale, light, and creamy: no gritty sugar dragging on the beater.
Yolks and aromatics 3 min hands-on

Beat in the egg yolks one at a time, then the lemon zest and vanilla. Scrape the bowl once. It looks like thick pale custard.

Take care If it looks curdled or split, your butter was too cold or the yolks straight from the fridge. Beat 30 seconds more and it comes together; it will still bake fine.
Sift and fold the dry 5 min hands-on

Sift the cornstarch, flour, baking powder, and salt together, then add to the bowl and mix on low just until a soft dough forms. Stop the moment it clumps into a mass.

Look for A soft, pale, slightly powdery dough that presses together. It feels different from cookie dough, more like play-clay.

Take care Overmixing works the little gluten there is and trades away the sandy melt for chew. Mix to just-combined and stop.
Chill the dough 2 min hands-on · 1 h wait

Press the dough into two flat discs, wrap, and chill at least 1 hour (or overnight). Cold dough rolls cleanly and holds its shape in the oven.

Take care Roll warm dough and it sticks, tears, and spreads into greasy edges. If it ever softens on you, put it back in the fridge.
Roll and cut 20 min hands-on

On a cornstarch-dusted surface, roll one disc to a scant 1/4 inch (6mm). Cut 2-inch (5cm) rounds and lay them on parchment-lined sheets. Gather scraps, chill briefly if soft, and re-roll. Aim for even thickness so pairs match.

Look for Rounds that are the same thickness edge to edge; uneven discs bake unevenly and won't pair.
Chill the cut rounds 2 min hands-on · 20 min wait

Slide the sheets into the fridge for 20 minutes. Cold rounds hold their edges and stay flat instead of spreading.
Bake pale 4 min hands-on · 24 min wait

Bake at 350°F (175°C), one sheet at a time, 9-11 minutes, rotating halfway. They should look dry and set on top but stay pale ivory. Bake the second sheet while the first cools.

Look for Tops matte and set, edges still pale, bottoms barely blond. They firm as they cool, so slightly underdone is right.

Take care Any tan color on the edges means overbaked: the cookie dries out and tastes toasted instead of buttery. Alfajores stay pale. Pull at the first sign of set.
Cool completely 2 min hands-on · 20 min wait

Let them firm on the sheet 3 minutes (they're very fragile hot), then move to a rack to cool fully before filling.

Take care Lift a hot alfajor and it crumbles in your fingers. Wait until fully cool and set.

When it goes wrong

Problem	Cause	Fix
Cookies spread and lost their shape	Dough too warm or butter over-softened	Chill dough and cut rounds harder; roll on a cool surface
Chalky or pasty aftertaste	Cornstarch not sifted, or underbaked	Sift the starch; bake the full time: set, but still pale, cooks the starch through
Cookies crack and crumble apart	Overworked dough or handled while hot	Mix to just-combined; let them set on the sheet before moving

Fill & Coconut

Yields 18 sandwiches Make 0-3 days ahead

Why this works Assembly is where the cookie earns its name: a generous swipe of dulce de leche pressed until it peeks out the sides, then that exposed rim rolled in coconut so every bite ends in a little chew and a little sweetness. Match cookies by size so the filling meets a clean edge all the way around. Filled alfajores soften slightly overnight as the cookie draws moisture from the dulce; many people prefer them on day two, when the whole thing has settled into one tender bite.

270g, 15g per sandwich Dulce de leche (from above) 270 g · A firm milk caramel, purchased or made by the alfajores open water-bath method. Do not heat a sealed can.
1/2 cup (45g) Shredded unsweetened coconut 45 g · Fine shred or desiccated clings best; toast it lightly first if you like a deeper flavor
1-2 tbsp, for dusting Powdered sugar · Optional finish

Pair by size 5 min hands-on

Sort the cooled cookies into matched pairs, flat sides up. Set the better-looking half of each pair aside for the top.
Fill 8 min hands-on

Pipe or spread a scant tablespoon (about 15g) of cold dulce de leche onto the flat side of each bottom cookie, leaving a small bare margin at the edge; the sandwich will push it outward.

Look for A soft dome of dulce in the center, edges still clean.
Sandwich 6 min hands-on

Set the matching top on and press straight down with gentle, even pressure until the filling just reaches the rim all the way around. Don't press so hard it squeezes out in a gush.

Look for A continuous, even ring of dulce showing at the seam: no gaps, no blowout.

Take care These cookies snap under uneven pressure. Press flat with a fingertip on the center, not by pinching the edges.
Roll in coconut 6 min hands-on

Spread the coconut in a shallow bowl. Hold each sandwich by its flat faces and roll the exposed dulce rim through the coconut so it sticks in a neat band around the middle.

Look for An even coconut collar around the seam; the exposed filling is what the coconut grabs onto.
Dust and set 3 min hands-on · 15 min wait

Dust lightly and refrigerate in a covered single layer until serving, up to three days. Let the sandwiches stand 15-20 minutes before eating so the filling softens.

When it goes wrong

Problem	Cause	Fix
Coconut won't stick	Filling pressed flush or too cold and stiff	Leave a hair more dulce peeking at the rim; let the assembled cookie sit a minute so the surface tacks up
Filling squeezed out everywhere	Too much dulce or pressed too hard	Scale back to two teaspoons and press gently and evenly
Cookies went soggy	Over-filled or stored warm	A little softening is the goal; if wet, use less dulce and store cool in a single layer

To the Table

Stack them in a low pyramid on a rustic plate or wooden board; height invites the first hand in.
Angle a few so the coconut collar and the ribbon of dulce show; that cross-section is the whole sell.
A light snow of powdered sugar over the top just before they go out.
Set them on the table early with coffee or mate and let people graze. They're a passing-plate cookie, not a plated dessert.

For the Cook Who Wants More

The Honest Ledger

Serves	18
Shopping	30 min
Hands-on (new to this)	2 h 18 min
Hands-on (comfortable)	1 h 48 min
Hands-on (experienced)	1 h 26 min
Waiting (same for everyone)	5 h 49 min
This page, including shopping	7 h 45 min
You will dirty	12 dishes

This dairy-first revision is a rich dessert, portioned as written. Dairy-free ingredients and any changed methods are available through the dietary filters. Nutrition is pending recalculation from the revised weights, selected product labels and finished yield; earlier estimates are not carried forward.

Words We Used

Dulce de leche: Milk cooked with sugar to a thick caramel. Here it is cooked outside its can in a covered dish set in a water bath; the dairy-free branch uses coconut condensed milk.
Maicena: Spanish for cornstarch, and the nickname for this style of alfajor (alfajores de maicena) built on a high proportion of it.
Cornstarch tenderizing: Cornstarch has no gluten-forming protein, so replacing part of the flour with it dilutes the gluten network and leaves a short, sandy, melt-in-the-mouth crumb instead of a chewy one.
Water bath (bain-marie): Cooking a dish set inside a larger pan of water, so the gentle, even heat browns the milk without scorching and, with the dish open, without the pressure risk of heating a sealed can.

We Hunt We Gather · Vol. 1 · No. 46

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