Ingredients
For the Cake:
3/4 stick butter
1 scant cup sugar
1 1/2 cups flour
2 teaspoons baking powder
1/2 teaspoon salt
1 egg
1/2 + 1/8 cup buttermilk
For the Topping:
3/4 stick butter
3/8 cups flour
3/4 cup brown sugar
1 scant tablespoon cinnamon
3/4 cup almonds or pecans
Read Full Directions
http://www.alexandracooks.com/2011/08/18/quintessential-coffee-cake/