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Preheat the oven to 300 degrees F.
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Line 2 baking sheets with parchment paper.
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Whisk together the powdered sugar, almond flour, cinnamon, and espresso.
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Add the egg white and vanilla.
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Knead until the dough comes together.
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Roll out the dough between two sheets of plastic cling film.
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Use a greased star cookie cutter to cut out shapes.
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Transfer the shapes to the baking sheets.
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Whisk together the egg white, powdered sugar, and espresso.
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Brush the glaze onto the unbaked cookies.
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Bake for 15 minutes.
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Transfer cookies to a wire cooling rack.
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Plate, and serve.