Preheat oven to 375 degrees. Grease muffin pans. Mix together dry ingredients. Stir in eggs, oil and milk. Scoop batter into muffin cups, filling 1/2 full. Place rounded teaspoon tsubushian into each muffin cup, then cover with remaining batter. Bake 30-40 minutes. Makes 24 muffins.
Note: If you're a peanut butter fan substitute for the tsubushian, yummy!