Ingredients
Blueberry-Lemon Base
- 1 cup fresh blueberries (or frozen)
- Zest and juice of 1 lemon
Curd Mixture
- 2 whole eggs
- 2 egg yolks
- 1 cup granulated sugar
- A pinch of fine sea salt
Finishing
- 1/2 cup unsalted butter (cut into small cubes)
Instructions
- Prepare the Blueberry-Lemon Base: In a saucepan over medium heat, combine the blueberries and lemon juice. Cook for 5-7 minutes, stirring occasionally, until the blueberries burst and release their juices.
- Strain the Mixture: Pour the cooked blueberries through a fine-mesh sieve set over a bowl. Use the back of a spoon to press the fruit and extract as much juice as possible. Stir in the lemon zest with the extracted juice and set aside.
- Prepare Egg Mixture: In a heat-proof bowl, whisk together the whole eggs, egg yolks, and granulated sugar until the mixture is smooth and evenly blended.
- Combine with Blueberry Base: Gradually whisk the blueberry-lemon juice mixture into the egg and sugar mixture until fully combined.
- Cook the Curd: Place the bowl over a pot of simmering water to create a double boiler. Add a pinch of fine sea salt. Stir the mixture constantly with a wooden spoon or heat-resistant silicone spatula for 10-15 minutes until it thickens and coats the back of the spoon.
- Add Butter: Remove the bowl from heat. Add the butter cubes one at a time, stirring after each addition until the butter is fully melted and the curd is smooth and glossy.
- Strain Again: For an ultra-smooth texture, strain the curd through a fine-mesh sieve into your desired storage container or jar.
- Cool and Store: Allow the curd to cool to room temperature. Place a sheet of plastic wrap directly on the surface to prevent a skin from forming. Seal the container and refrigerate for up to one week.
Notes
- Use fresh or frozen blueberries; just thaw frozen if using.
- Cooking the curd over a double boiler prevents overheating and curdling of eggs.
- Pressing the cooked blueberries helps maximize flavor extraction.
- Adding plastic wrap directly on the curd surface prevents skin formation.
- Keep refrigerated and consume within one week for best freshness.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Category: Sauce/Spread
- Method: Stovetop
- Cuisine: American