Ingredients
1/2 stick unsalted butter
1/4 cup half and half
3 large egg yolks, lightly beaten
1 tablespoon fresh lemon juice, or to taste
1/2 teaspoon English style mustard
1/4 teaspoon salt, or to taste
a pinch of cayenne
Preparation
In a microwave safe 1 quart glass measuring cup or bowl micrwave the butter a high power for 1 minute,, or until it is melted, whisk in the half and half, the egg yokes, the lemon juice, the mustard, the salt, the cayenne, and pepper to taste, and microwave at high power for 1 minute more.
Whisk the mixture vigorously and microwave on high 45 seconds, or until it registers 150degF on an instant read thermometer.
Remove sauce from microwave and whisk vigorously.
Makes about 3/4 cup
