Beat butter in a large bowl with mixer on low speed until creamy. Gradually beat in sugar, spices, baking soda, salt, and baking powder until combined. Increase speed to medium; beat until well blended. Beat in eggs, 1 at a time. until pale and creamy. Add 1/2 the flour; beat just until blended. Beat in coffee and molasses, then remaining flour just until combined. Add pumpkin and chopped ginger; beat just until blended. Spoon into prepared pan (cups will be nearly full).
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