Preheat your oven to 350 degrees F and grease a 9x9 or 8x8 inch pan with cooking spray.
Combine all of the cake ingredients in a large bowl and whisk to combine. Pour ½-3/4 of the batter into the greased pan.
Cinnamon Maple Filling
Mix the cinnamon and maple syrup in a small bowl until combined.
Pour the filling on top of the cake batter in the baking pan.
Top with the remaining cake batter and make the crumb topping
Crumb Topping
Combine the crumb topping ingredients in a small bowl and stir to combine. The mixture should be forming clumps and hold together when pinched between two fingers.
Scatter topping over the top of the coffee cake batter. Bake the cake for 45-50 minutes.
Let the cake cool completely (about 20-30 minutes), remove from the pan, slice and enjoy!