These Chocolate Raspberry Bran Muffins are light and fluffy, with just the right amount of sweetness. They are packed with chocolate flavor and juicy raspberries.. and pack in a surprising amount of fiber and nutrition!
Heat oven to 375° F. Place muffin liners in muffin pan or grease muffin tin well.
Place bran cereal in a blender or food processor and coarsely crush.
Add crushed cereal to a medium bowl and stir in buttermilk; let stand 5 minutes.
Add oil, eggs, and vanilla to the cereal mixture; whisk to combine. Add flour, sugar, cocoa, baking soda, and salt; stir just until moistened.
Lightly break frozen raspberries with the back of a spoon so they are in small pieces. Gently fold into the muffin batter along with the chocolate chips (if using).
Divide batter evenly among muffin cups.
Bake 20-25 minutes or until a toothpick inserted into the center of a muffin comes out clean.
Immediately remove muffins from pan and allow to cool on a wire rack before serving.