Preheat the oven to three hundred and fifty degrees. Grease a cake pan and line with parchment paper.
In a mixing bowl, blend two cups of Bisquick, three-quarters of a teaspoon of baking soda, one-half teaspoon of cinnamon.
In a separate bowl, combine one-half cup of strong brewed coffee and one-half cup of sour cream. Mix until smooth.
In a large mixing bowl, using an electric mixer, beat two eggs. Add one cup of butter, one cup of white sugar, one teaspoon of vanilla and the sour cream and coffee mixture.
Add the dry ingredients into the wet ingredients mixing until well incorporated.
Pour the cake batter into the prepared cake pan and prepare the crumb topping.
In a medium bowl, mix one-half cup of Bisquick, one-quarter cup of brown sugar, one-half teaspoon of cinnamon and one teaspoon of instant coffee. Add four tablespoons of salted butter and mix until crumbly. Sprinkle evenly over the cake batter and bake for forty-five minutes, or until done.