Ingredients
Instructions
- Mix brown sugar walnuts and cinnamon together and set aside.
- Muffin: Mix butter, sugar and eggs.
- Add sour cream and vanilla.
- Add dry ingredients.
- Marble the brown sugar mixture through the batter using a table knife.
- Reserve a few tablespoons for sprinkling on top.
- Fill 12 greased muffin cups.
- Sprinkle remaining brown sugar mix on top of each.
- Bake at 375 degrees for 22 minutes.
- Remove from pan and cool.