Ingredients
Oil or butter for the pan
1lb (4 sticks) butter or margarine (or combination), softened
2 cups (packed) light brown sugar
4 eggs
2 tsp. vanilla extract
4 cups flour
2 tsp. baking powder
2 ½ tsp. baking soda
½ tsp. salt
1 Tbsp. powdered cardamom
2 cups sour cream, yogurt, or buttermilk
Nut Mixture
¼ cup (packed) light brown sugar
1 Tbsp. cinnamon
½ cup finely chopped walnuts