2 c. flour
1 c. sugar
4 tsp. baking powder
1 1/2 tsp. cinnamon
1 1/4 tsp. salt
1 c. buttermilk
1/2 c. oil
2 tsp. vanilla
2 eggs

STREUSEL:

2 tbsp. sugar
1 tsp. cinnamon
2 tsp. butter

Preheat oven to 350 degrees. Grease and flour bottom of loaf pan. Combine ingredients (except streusel) in large bowl; mix well. Pour into pan and heat 3 minutes. Mix streusel. Sprinkle over top of batter and swirl with fork to marble. Bake 45-55 minutes or until toothpick comes clean. Cool before slicing.