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Preheat the oven to 400 degrees. Spray a 12-cup muffin tin with cooking spray or line with cupcake liners and set aside.
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Whisk together the flour, baking powder, cinnamon, ginger, salt, and orange zest in a large mixing bowl.
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Combine the butter, sugar, milk, and egg in a medium mixing bowl and stir until well combined. Mix the wet ingredients into the flour mixture until just barely incorporated, then fold in the cranberries and white chocolate chips.
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Divide batter evenly between the prepared muffin cups.