The Eagle Brand website has what looks like an easy idea if you also have yogurt or sour cream on hand and some nuts. You'd need to convert the 2 C biscuit mix to a home-made equivalent : 1 3/4 C flour, 2 1/2 tsp. baking powder, 3/4 t. salt, 2 T plus 1 t. butter.
I made the following coffee cake a few weeks ago; it made two 8 inch round cake layer pans but it can be made in a 9 x 13 inch pan for a larger size. I took it to a family breakfast; they went over well and the bf's uncle said it reminded him of the crumb cake you can get in New York (the best compliment!)
Cinnamon Coffee Cake
1 1/4 cup sugar
1 1/2 cups all purpose flour
1 Tablespoon cinnamon
6 tablespoons melted butter
1 cup brown sugar
1 1/2 tablespoons cinnamon
1 teaspoon unsweetened cocoa
3/4 cup butter, room temp
1 1/2 cups sugar
2 1/2 teaspoons baking powder
2 teaspoons vanilla extract
3 large eggs
3/4 cup plain yogurt or sour cream
1 1/4 cups milk (reg, lowfat, heavy cream, haf & half or evaporated
3 3/4 cups all purpose flour
Preheat oven to 350F. degrees. Spray two 8 inch round cake pans or a 9 x 13 inch baking pan with non stick cooking spray; set aside.
For the cake, beat together the butter, salt, sugar, baking powder and vanilla in a large bowl until combined. Add the eggs, one at a time, beating well. In a separate smaller bowl, whisk together the milk and yogurt or sour cream. Alternate the milk and the flour with the sugar mixture, beating until smooth. Spoon half of the batter into the pans
Mix together the ingredients for the filling and sprinkle over the cakes then top evenly with the remaining batter. Mix together the ingredients for the topping and sprinkle over the top of the cakes; place them on a baking sheet and into the oven for 50-60 minutes or until pick inserted in center comes out clean.
**At this step, you can eat it the way it is but I made a glaze with powdered sugar, a bit of good vanilla and a couple teaspoons of half & half and drizzled over the top of mine. Also, I didn't use the cocoa in my filling because I wanted cinnamon coffee cake but here is where you can get creative. You can add applesauce, lemon curd, raspberry jam, sliced apples, blueberries, pretty much anything you want.
here are two potential links...
i would personally omit the pie/peach filling on this one, and alter the crumb topping a bit, but that's just me... a start though to include the condensed sweetened milk if that's what you're after:
this one you could add a streusel topping to: