This is an important sauce at this time of year, when asparagus is in the shops, the sun is shining, and a light supper is called for. Hollandaise sauce is the perfect method to help butter and lemon juice to stick to food, just thickened with egg yolk.
- 150 g unsalted butter
- 2 large egg yolks
- 2 teaspoons of white wine vinegar
- 2 teaspoons of lemon juice
- Salt and pepper
- Put the butter in a small pan over low heat, and as soon as it has melted, take it off the heat.
- In another pan, half fill with boiling water, and put a small trivet in the bottom. Put over a low flame so the water stays hot.
- In a heat-proof bowl, beat the egg yolks with the vinegar, and sit them over the boiling water.
- Straight away, start pouring in the molten butter in a slow stream, beating the eggs all the time. A small balloon whisk is ideal.
- The sauce will be quite thick; add the lemon juice and keep beating, and season with salt and pepper.
You can vary the lemon juice, salt and pepper to your taste.