INGREDIENTS
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One 8-inch Sweet Tart crust
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6 egg yolks
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1 egg
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1/2 cup plus 4 tablespoons sugar
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1/2 cup strained meyer lemon juice (3 to 4 lemons)
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Zest of 1 Meyer lemon (see Notes)
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Pinch of salt
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8 tablespoons (4 ounces) butter, at room temperature
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Bain-marie (see Notes)
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A whisk, preferably a balloon whisk (the head of the whisk is more rounded than the long variety)