Onion Infused Butter Bearnaise

Ingredients

• 2 tbsp vinegar
• 2 tbsp water
• 1 slice onion
• 3 egg yolks
• salt and pepper
• 4 tbsp butter

Method

1. 1 Bring vinegar, water, and onion slice to a boil. Simmer for 10 minutes.
2. 2 Remove the onion slice from the liquid.
3. 3 Remove from heat and whisk in beaten egg yolks until light.
4. 4 Season with salt and pepper, then whisk in butter in small bits until creamy.