Coffee Crumb Cake

Does anyone have a classic Crumb/Coffee Cake recipe?

I have looked on multiple web sites for a basic version of this cake. I cannot seem to find a basic recipe. They all seem to have friut or something added. My soon to be mother in law is supposed to make the best Coffee/Crumb Cake ever and she will not give up the recipe. This is my fiance’s favorite but every recipe I show him he says that it is not it. Any help on this one would be mucho appreciated!!!

I always use the one on the Bisquick box..but put on twice the amount of topping.

Cinnamon Nut Coffee Crumb Cake

Kitchen Supply Crumbcake Paper Molds, Set of 25 $5.48 From Kitchen Supply, elegant Paper Bakeware from Italy in classic gold on brown pattern. Perfect for home-baked gifts and commercial bakeries. No need to pre-grease. Instructions included….

Black Mountain Gold Cinnamon Crumb Cake Coffee Pods-14 Coffee Pods $6.74 Black Mountain Gold takes their carefully, medium-roasted House Blend and combines it with exquisite flavors reminiscent of old-fashion cinnamon and butter coffee cake to create this masterfully flavored coffee….

Black Mountain Gold Cinnamon Crumb Cake Coffee Pods-2 Pack-28 Pods $16.95 Black Mountain Gold takes their carefully, medium-roasted House Blend and combines it with exquisite flavors reminiscent of old-fashion cinnamon and butter coffee cake to create this masterfully flavored coffee….