Radios de Lima are delicate, crisp Peruvian butter cookies shaped like little wheels or radios, with a bright lime glaze that soaks into the crumb. The name means “Lima spokes” or “Lima wheels,” and they are a beloved sweet from Peru’s capital, often served with coffee or tea. This recipe delivers a sandy, melt-in-your-mouth texture with a tangy citrus finish—simple to make and perfect for sharing.
Ingredients
- 1 cup (226 g) unsalted butter, softened
- 1/2 cup (60 g) powdered sugar, sifted
- 1 teaspoon vanilla extract
- 2 cups (250 g) all-purpose flour
- 1/4 teaspoon salt
- 1 large egg yolk
- 1 tablespoon milk, if needed
- For the glaze:
- 1 cup (120 g) powdered sugar, sifted
- 2 tablespoons fresh lime juice (from about 1 lime)
- 1 teaspoon lime zest
Instructions
- In a large bowl, beat the softened butter and powdered sugar together until light and fluffy, about 2 minutes. Add the vanilla and egg yolk, and beat until combined.
- In a separate bowl, whisk the flour and salt. Gradually add the dry ingredients to the butter mixture, mixing on low speed until a soft dough forms. If the dough seems dry and crumbly, add the milk one teaspoon at a time until it comes together.
- Shape the dough into a disk, wrap in plastic wrap, and refrigerate for at least 1 hour (or up to 2 days). This firms the dough for easier rolling.
- Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper.
- On a lightly floured surface, roll the dough to about 1/4-inch (6 mm) thickness. Use a round cookie cutter (about 2 inches / 5 cm) to cut out circles. Place them 1 inch apart on the prepared sheets.
- Bake for 10–12 minutes, until the edges are just barely golden. The cookies should look dry and pale. Let them cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
- Make the glaze: in a small bowl, whisk together the powdered sugar, lime juice, and lime zest until smooth. It should be thick but pourable—if too thick, add a few drops of lime juice; if too thin, add a little more powdered sugar.
- Dip the top of each cooled cookie into the glaze, letting the excess drip off. Place on a wire rack to set for about 20 minutes, until the glaze is firm.
Tips
- For the best texture, use real butter and don’t overwork the dough—overmixing develops gluten and makes the cookies tough.
- If you don’t have lime, lemon works beautifully, though the flavor will be slightly less floral.
- Chilling the dough is essential: it prevents spreading and makes the cookies easier to handle. Don’t skip it.
- If the glaze is too runny, the cookies will absorb it and become soggy. Aim for a thick, honey-like consistency.
Serving Suggestions
Serve radios de lima with a cup of Peruvian coffee or a glass of cold milk. They also pair well with a light herbal tea, like chamomile or mint. For a dessert platter, arrange them alongside fresh fruit or a scoop of vanilla ice cream.
Variations
For a more intense lime flavor, add 1 teaspoon of lime zest to the cookie dough itself. You can also swap the lime for orange or tangerine juice and zest for a sweeter citrus twist. If you prefer a nuttier cookie, replace 1/4 cup (30 g) of the flour with finely ground almonds or pecans. For a festive touch, sprinkle a little extra zest on top of the glaze before it sets.
Storage and Reheating
Store the glazed cookies in an airtight container at room temperature for up to 5 days. They do not need refrigeration. To keep them crisp, place a sheet of parchment paper between layers. These cookies also freeze well: freeze unglazed cookies for up to 3 months, then glaze after thawing. Do not reheat the cookies—they are meant to be enjoyed at room temperature.
Frequently Asked Questions
Can I use margarine instead of butter? Yes, but the flavor and texture will be less rich and the cookies may spread more. Use a block-style margarine with at least 80% fat for best results.
Why did my cookies spread too much? This usually happens if the dough wasn’t chilled long enough, or if the butter was too soft. Make sure the dough is firm before rolling, and don’t over-cream the butter and sugar.
Can I make the dough ahead of time? Absolutely. The dough can be refrigerated for up to 2 days or frozen for up to 1 month. Thaw in the refrigerator overnight before rolling.
How do I get a smooth glaze? Sift the powdered sugar to avoid lumps, and stir the glaze gently until fully combined. If it’s still lumpy, strain it through a fine sieve.
Can I skip the glaze? Yes, but the cookies will be less sweet and lack the signature citrus kick. If you skip it, consider adding a little lime zest to the dough for flavor.
Are these cookies supposed to be soft or crunchy? They are crisp and sandy, similar to shortbread. If they come out soft, they may be underbaked—bake a minute or two longer next time.
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