INGREDIENTS
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1 cup all-purpose flour
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2 teaspoons matcha tea powder
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1 teaspoon baking powder
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1/4 teaspoon salt
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1/4 cup granulated sugar
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1/4 cup milk, plus 2 teaspoons, divided
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1 large egg
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1 tablespoon butter, softened
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1/4 cup powdered sugar
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2 teaspoons ginger juice, from one 2 to 3 inch piece of ginger