Alfajores (Latin American Sandwich Cookies)

Introduction

Alfajores are delicate butter cookies with a cornstarch base that bakes into a tender, melt-in-your-mouth texture, then sandwiched with dulce de leche for richness and caramel sweetness. The lemon rind brightens the cookie without overpowering, and the quick 15-minute bake means you can have a batch ready in under an hour from start to finish. These work as an afternoon treat, a dessert plate addition, or packaged as a homemade gift.

Recipe Details

• Prep Time: 20 minutes
• Cook Time: 15 minutes
• Total Time: 35 minutes
• Servings: 24 cookies (12 sandwich pairs)

Ingredients

• ½ cup (120 ml) butter
• 1 cup (240 ml) white granulated sugar
• 1 egg
• 2 egg yolks
• 1 tsp vanilla
• 2 tsp lemon rind, grated
• 1½ cup (360 ml) cornstarch
• ½ cup (120 ml) flour
• 1 tsp baking powder
• ¼ tsp salt
• Dulce de leche

Instructions

1. Cream butter; add sugar and beat until fluffy.
2. Add egg and egg yolks one at a time, beating well. Beat in vanilla and lemon rind.
3. Sift together cornstarch, flour, baking powder, and salt. Add to batter and mix well.
4. Drop batter by small spoonfuls onto well-buttered baking sheet.
5. Bake at 350°F for 15 minutes. Remove immediately and cool.
6. Sandwich the cookies together with dulce de leche.

Variations

Extra lemon note: Increase the lemon rind to 1 tablespoon and add 1 teaspoon of fresh lemon juice to the batter. This sharpens the citrus flavor without adding moisture that would affect texture.

Dulce de leche alternative: Use a thick, smooth caramel sauce or sweetened condensed milk reduced on the stovetop until it reaches a spreadable consistency. The sandwich will taste less traditional but equally rich.

Spiced version: Add ¼ teaspoon ground cinnamon and a pinch of ground clove to the dry ingredients. This shifts the flavor toward warm spice while keeping the tender texture intact.

Smaller cookies: Drop the batter in even smaller spoonfuls to create bite-sized alfajores. They’ll bake in 12–13 minutes and yield more pieces per batch, making them ideal for serving at parties.

Coconut dip: After the cookies cool completely, dip the edges of the sandwich into shredded coconut before the dulce de leche fully sets. The coconut adds textural contrast without changing the filling.

Tips for Success

Don’t skip the cooling step: Remove the cookies from the baking sheet immediately after baking while they’re still slightly warm and pliable. If they cool on the sheet, they’ll stick and crack when you try to remove them.

Watch the lemon rind size: Grate it finely so it distributes evenly throughout the batter and doesn’t create bitter pockets. Zest directly over the mixing bowl to capture all the aromatic oils.

Use room-temperature butter: Cold butter won’t cream properly with the sugar, and you’ll end up with dense, grainy cookies instead of fluffy ones. Set it out 30 minutes before you start.

Measure cornstarch accurately: Use a spoon to scoop and level, or weigh it if you have a scale. Too much cornstarch makes the cookies dry and crumbly; too little makes them cakey and dense.

Fill while slightly warm: Pair and sandwich the cookies while they’re still barely warm, which helps the dulce de leche adhere. If they cool completely, the sandwich is more likely to slip apart when you pick it up.

Storage and Reheating

Store alfajores in an airtight container at room temperature for up to 4 days. The cookies stay crisp and the filling remains spreadable. For longer storage, keep them in the refrigerator for up to 1 week; bring them to room temperature before serving for the best texture.

FAQ

Why did my cookies spread too much on the baking sheet?

The batter was likely too warm or the butter was too soft. Make sure your butter is softened but still firm, and chill the batter for 15 minutes before baking if the kitchen is very warm.

Can I use a different filling instead of dulce de leche?

Yes. Caramel sauce, a thick fruit jam, or even a simple buttercream frosting works as a sandwich filling. Keep in mind that very wet fillings will soften the cookies over time, so consume filled cookies within a few hours if using juice-based fillings.

Why are my cookies cakey instead of tender?

You may have added too much flour or overworked the batter after mixing in the dry ingredients. Sift the dry mixture carefully and fold it in gently until just combined—small lumps are fine and will bake out.

How do I know when they’re done baking?

The cookies should be very pale golden on top and edges, almost white in appearance. They firm up as they cool, so don’t overbake or they’ll be hard instead of tender.