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Preheat oven to 350F. Line 12 muffin cups with paper liners.
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In a mixing bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, ginger, and allspice.
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With an electric mixer, beat together butter and sugars until light and fluffy. Add sour cream, eggs, and vanilla; beat until well mixed. Slowly add in flour mixture and beat until just combined. Fold in grated apple.
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Divide batter among the prepared muffin cups. Bake 18 to 20 minutes or until a toothpick inserted into the center comes out clean. Cool completely before frosting.