Put all the dry ingredients in the bowl of a food processor fitting with the blade attachment. Pulse to combine everything thoroughly.
Pulse in the butter until it is well distributed and the mixture is crumbly, 30-40 pulses.
Pour the dry mixture into a large mixing bowl. REMOVE one cup of the mixture and set it aside.
Whisk together the eggs, apple butter, molasses, and sour cream until smooth.
Add the wet ingredients to the dry, folding just until everything is thoroughly mixed. Don't over mix.
Spread the batter evenly into the prepared pan. Sprinkle the reserved crumbs evenly over the top. Bake for 50-55 minutes, or until a toothpick inserted in the center comes out without wet batter clinging to it. The baking time will vary depending on your pan and your oven.
Let cool slightly before cutting.
Notes
Storing, Freezing, and ReheatingSTORAGE: As crumb cakes go, this one is lighter on the crumbs, and moister in the base than most classic New York style cakes. I highly recommend it warm from the oven. Store any leftovers at room temperature, covered with plastic or foil. I don't slice it until I'm ready to serve.FREEZING: Let the cake cool completely, then wrap in plastic and again in foil. Plan to use it within 2-3 months.REHEATING: For single pieces I microwave for 15-20 seconds, it's just like fresh from the oven!
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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