
Bright, tangy, and impossibly silky, this lemon curd hits every note you want — sharp citrus up front, a buttery richness that lingers, and a glossy finish that looks like it came from a fancy patisserie. Most store-bought curds and even some homemade recipes lean on egg yolks as the thickener, but this version uses cornstarch instead, which keeps things simple and completely free of any spice-based additives that can sneak into commercial products. The method is straightforward: whisk the dry ingredients together, cook the mixture until it turns translucent and thick, then finish with cold butter pieces for that luxurious, smooth texture. Straining the finished curd through a fine-mesh sieve gives it that ultra-clean, professional consistency — no stray zest bits, no lumps, just pure lemon velvet. Spread it on scones, swirl it into yogurt, layer it into a tart shell, or eat it straight off the spoon — it genuinely works everywhere. The fact that it sets up beautifully in the fridge with just a handful of pantry staples makes it one of those recipes you'll come back to again and again.
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Whisk together the sugar, cornstarch, and salt in a small saucepan until evenly combined. Add the water and lemon juice and whisk until the cornstarch is fully dissolved with no lumps visible.
Set the saucepan over medium heat and cook, whisking constantly, until the mixture thickens and turns from cloudy to translucent, about 6–8 minutes. Once it begins to bubble, continue whisking for 1 full minute — the curd should be thick enough to coat the back of a spoon and hold a clear line when a finger is drawn through.
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