Coat a 9x13 inch baking dish with cooking spray and set aside.
In a small bowl, combine the yogurt and baking soda. Set aside.
In a medium bowl, whisk together the flour, baking powder, salt, cinnamon, nutmeg, ginger and cloves. Set aside.
In the bowl of an electric mixer, cream the butter and sugar until fluffy. Add the eggs one at a time until thoroughly combined. Stir in the vanilla and molasses. Add the dry ingredients to the batter alternatively with the yogurt mixture until well combined.
Pour the batter into the baking dish. Whisk together the nuts, sugar and cinnamon and sprinkle over the top of the cake.
Bake for 40 -45 minutes or until a toothpick inserted into the center of the cake comes out clean. Let cool for 20 minutes before serving.
Notes
Coffee Cake can be made up to 2 days in advance. Cover and store at room temperature until ready to serve.Leftovers can be covered tightly and stored in the refrigerator for up to 5 days. Warm in the oven or microwave briefly before serving.