HOW TO FIX BROKEN HOLLANDAISE SAUCE
The key to getting the consistency right all comes down to the hot melted butter. This recipe emulsifies butter into an egg yolk and lemon juice mixture. So you want to make sure you’re streaming in butter that’s hot enough (just melted won’t do).
But in the case that your sauce does break and becomes a speckled mess, don’t fret. Below are two methods to try that will help bring your sauce back to life.
Blend 1-2 tablespoons of boiling hot water: As you’re blending, slowly add in the hot water and blend until the consistency is right.
Add an extra egg yolk: While the blender is on, add an extra egg yolk with a teaspoon of hot water into the blender and blend until it becomes perfectly creamy.