We think this spin on classic hollandaise sauce—made with crème fraîche rather than cooked over a double boiler—is brilliant. When drizzled over the warm mushrooms, it melts just enough that you'll wonder if it's the real thing.
Sunset OCTOBER 2010
1. Bring a medium saucepan of water to a boil. Using a slotted spoon, gently submerge eggs into water. Simmer 5 minutes, then carefully immerse in cool water.
2. Heat 1 tbsp. butter with the oil in a 12-in. frying pan over medium-high heat. Add mushrooms and sauté until browned, about 8 minutes, then season with salt.
3. Whisk together crème fraîche, mustard, and lemon juice and zest in a small bowl. Gradually whisk in remaining 2 tbsp. butter to make hollandaise sauce.
4. Divide watercress among plates. Top with warm mushrooms, then drizzle with hollandaise. Crack an end of each egg and peel a quarter of shell. Using a spoon, carefully loosen eggs from their shells and scoop onto salads. Add a few turns of pepper on top.
Note: Nutritional analysis is per serving.
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