These muffins, with their unexpected bursts of berry flavor, symbolize the unexpected twists in Holly's cases, where the smallest detail can alter the course of an investigation.
Preheat oven to 375°F and line a muffin tin with paper liners.
In a bowl, mix flour, sugar, baking powder, and salt.
In another bowl, whisk together milk, oil, and egg.
Combine wet and dry ingredients, fold in berries.
Divide batter into muffin cups.
Bake for 20-25 minutes until golden brown.