INGREDIENTS
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½ pound unsalted butter
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1 ¼ cups hazelnut flour
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1 ¼ cups all-purpose flour
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1 ½ cups powder sugar
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1 tsp baking powder
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½ tsp baking soda
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¼ tsp salt
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½ tsp ground cinnamon
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¼ tsp freshly ground nutmeg
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2 TBSP tightly packed brown sugar
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8 large egg whites, at room temperature
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½ cup canned pumpkin puree