1. Preheat oven to 375°. Line 2 (12-cup) miniature muffin pans with paper liners.
2. Combine first 7 ingredients in a large bowl. Whisk together egg, milk, and oil in a small bowl; stir egg mixture into flour mixture just until blended. (Do not overmix.) Spoon batter by rounded tablespoonfuls into prepared muffin pans.
3. Bake 12 to 15 minutes. Serve immediately.