Created by Mikekey on February 11, 2012
Step 1: Preheat oven to 350°F Lightly coat a 5-by-9-inch loaf pan with non-stick cooking spray.
Step 2: Coarsely chop 1/2 cup walnuts. Reserve remaining walnut halves.
Step 3: In a large bowl, with mixer on medium-high speed, beat to blend egg, buttermilk, and butter. Add chopped walnuts, flour, brown sugar, baking soda, baking powder, salt and vanilla; stir just until evenly moistened.
Step 4: Pour into loaf pan and arrange remaining walnut halves evenly on top of batter.
Step 5: Bake 45 to 50 minutes, until bread begins to pull away from side of pan. Let bread cool in pan on wire rack for 10 minutes. Run a knife between bread and pan sides, then turn out onto wire rack. Let cool 10 minutes before slicing.