Pumpkin coffee cake is a soft, moist and fluffy spiced pumpkin cake layered with a sweet cinnamon sugar, topped with crunchy cinnamon streusel and maple glaze.
In a large bowl, whisk together the flour, brown sugar, granulated sugar and ground cinnamon for the streusel topping. Work in the melted butter a little at a time until a sand like texture develops.
In a large mixing bowl, whisk the oil, light brown sugar, sugar, pumpkin puree, eggs, vanilla extract and buttermilk until well combined. Whisk in the dry ingredients until just combined.
Evenly spread half pumpkin cake batter into the prepared pan. Top the pumpkin cake layer with the cinnamon sugar. Repeat with a second layer of pumpkin cake. Top with the streusel.