INGREDIENTS
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For the Crust:
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1 1/2 cups Cup4Cup all-purpose gluten-free flour
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1 teaspoon granulated sugar
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1/2 teaspoon salt
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1/2 cup (1 stick) cold unsalted butter, cut into cubes
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1 large egg yolk
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1/4 cup buttermilk
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For the Filling:
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1 1/2 cups diced asparagus
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1/2 cup sliced green onions
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1/2 tablespoon unsalted butter
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salt and pepper to taste
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6 large eggs
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1 cup milk (I used 2 percent)
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1/2 cup plus 2 tablespoons heavy cream
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pinch of salt and coarse ground pepper
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1 cup grated sharp cheddar cheese or Gruyere cheese