Seriously Simple: Crystalized ginger gives extra punch to apple streusel cake
3/4 teaspoon ground cinnamon
1/4 teaspoon freshly grated nutmeg
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1/4 cup finely chopped crystallized ginger
8 tablespoons (1/2 cup) unsalted butter, room temperature
3/4 cup firmly packed dark brown sugar
1/2 cup sugar
3 large eggs
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