Lemon Thumbprint Cookies with Lemon Curd
Prep Time: 25 minutes
Chill Time: 30 minutes
Bake Time: 12–15 minutes
Total Time: ~1 hour 15 minutes
Ingredients
For the Lemon Curd Filling
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2 large eggs
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2 large egg yolks (reserve the whites for another recipe)
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3/4 cup (150 g) granulated sugar
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1/2 cup (120 ml) fresh lemon juice (about 3–4 medium lemons)
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1 tbsp lemon zest (finely grated)
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1/2 cup (113 g) unsalted butter, cubed and room temperature
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Pinch of salt
For the Cookies
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1 cup (226 g) unsalted butter, softened
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2/3 cup (135 g) granulated sugar
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1 large egg yolk
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1 tsp vanilla extract
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1 tsp lemon zest (finely grated)
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2 cups (250 g) all-purpose flour
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1/4 tsp salt
Optional Coating: 1/2 cup (100 g) granulated sugar for rolling dough balls before baking
Step-by-Step Instructions
1️⃣ Make the Lemon Curd
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In a heatproof bowl, whisk together eggs, yolks, sugar, lemon juice, lemon zest, and a pinch of salt.
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Place bowl over a saucepan with simmering water (double boiler method). Cook, whisking constantly, until the mixture thickens enough to coat the back of a spoon (about 8–10 minutes, 170°F / 77°C).
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Remove from heat and whisk in the butter, a few cubes at a time, until smooth.
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Press the curd through a fine sieve to remove zest bits for a silky texture.
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Transfer to a jar, cover with plastic wrap directly on the surface, and chill for at least 30 minutes.
2️⃣ Make the Cookie Dough
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In a large bowl, cream butter and sugar until light and fluffy (2–3 minutes).
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Beat in the egg yolk, vanilla, and lemon zest until combined.
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Add flour and salt, mixing on low speed until a soft dough forms.
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Wrap in plastic wrap and chill for 30 minutes for easier handling.
3️⃣ Shape & Bake
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Preheat oven to 350°F (175°C). Line baking sheets with parchment paper.
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Roll dough into 1-inch (2.5 cm) balls. Optional: roll each ball in sugar for a sparkling look.
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Place on baking sheets 2 inches apart. Press your thumb (or the back of a 1/2 teaspoon measure) into the center of each ball to create a deep well.
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Bake for 10 minutes, remove from oven, and gently re-press the centers (they puff slightly).
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Return to oven and bake for an additional 2–5 minutes, until edges are lightly golden.
4️⃣ Fill & Serve
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Let cookies cool completely before spooning in chilled lemon curd.
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Dust lightly with powdered sugar if desired.
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Store in an airtight container in the fridge for up to 5 days.
Tips for Success
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Make the lemon curd a day ahead so it’s fully chilled and thick.
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Don’t overbake the cookies — they should stay soft and buttery.
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For a stronger lemon flavor, double the zest in the dough.
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You can use store-bought lemon curd in a pinch, but homemade is much fresher.