Yummiest Muffins

Okay, so these are some of the best muffins ever. I guess they are from Martha Stewart... but I found the recipe here.

In a large bowl, combine:
11 TB melted butter
1 1/2 c. brown sugar
1 1/4 c. plus 2 TB buttermilk
2 large eggs
2 tsp. vanilla
1 TB orange zest

In another bowl, stir together:
2 c. flour
1 1/2 c. wheat bran (I couldn't find it at my store so I used oat bran)
1 1/2 tsp. baking powder
1/4 tsp. baking soda
3/4 tsp. salt

Stir the dry into the wet, then gently fold in:
1 1/2 cups berries (I 've used mixed frozen berries and frozen raspberries)

Spoon the batter into 18 muffin cups and bake in a preheated oven at 350 for 30 minutes.