Ingredients
Equipment
Method
- Separate 6 egg yolks into a bowl and save whites for another use
- Zest 2 lemons to get about 2 tablespoons of fresh zest
- Juice the lemons until you have 1/2 cup (strain out all seeds)
- Cut butter into small cubes and keep cold until needed
- Strain egg yolks into a heavy-bottomed pot to remove any white pieces
- Whisk in sugar until the mixture lightens in color and looks creamy
- Gradually add lemon juice while whisking to prevent curdling
- Add lemon zest and mix everything together well
- Heat on low while whisking constantly - never stop stirring
- Watch for thickening - mixture should coat the back of a wooden spoon
- Remove from heat immediately when it just starts to bubble
- Stir in cold butter until completely melted and incorporated
- Strain through fine mesh sieve for silky smooth texture
- Cover surface with plastic wrap to prevent skin forming
- Refrigerate for at least 2 hours before using in recipes
Notes
Storage: Store covered in refrigerator for up to 1 week or freeze for up to 3 months.
Pro Tips: Use only fresh lemon juice for best flavor. Keep heat low to prevent scrambling. Constant whisking is essential. Cold butter helps achieve silky texture.
Troubleshooting: If too thin after cooling, add cornstarch slurry (1 tbsp cornstarch + 3 tbsp water) and reheat while stirring. If lumpy, strain or blend until smooth.