Buttery Orange Cake with Almond Crumble

This is one good cake--the orange flavor is subtle, the streusel topping has great texture and is not overly sweet, and the yogurt gives the cake/tea bread a lovely moistness. It's a 4 rather than a 5 because the directions are a bit off. He suggests an 8" x 4" loaf pan. I used a larger loaf pan and had enough batter left to make two plump little mini loaves. He also says to bake the bread for an hour and a half--my baby loaves were done in about 40 minutes, my large loaf took about an hour and ten minutes.