1In a large bowl, whisk together your sugars, sour cream, melted butter, eggs, and vanilla until evenly combined.
2Add your pumpkin and whisk until incorporated.
3Add your dry ingredients and gently fold with a spatula until no flour remains.
4In a small bowl, combine your ingredients for the cinnamon swirl and set aside.
5In a third bowl, combine all your ingredients for the crumble and mix with a fork until the texture resembles wet sand with varying sizes of clumps.
6Using a greased/parchment lined pan (mine was 8x8), pour out portions of batter, stopping to sprinkle your cinnamon mixture halfway through to create that cinnamon layer.
7Sprinkle your crumble on top and bake 50 to 55 minutes or until a toothpick comes out mostly clean.
8Drizzle the maple vanilla glaze over the baked coffee cake.
Ingredients
250 g all-purpose flour
1 tsp baking powder
1 tsp baking soda
1 tbsp pumpkin spice
0.5 tsp salt
100 g granulated sugar
110 g brown sugar
114 g sour cream or Greek yogurt
113 g melted, unsalted butter
2 large eggs
1 tsp vanilla paste/extract
1.5 cup canned pumpkin puree
30 g all-purpose flour
100 g brown sugar
1 tbsp ground cinnamon
90 g all-purpose flour
50 g granulated sugar
55 g brown sugar
85 g melted unsalted butter
120 g powdered sugar
1 tsp vanilla extract/paste
1 tbsp maple syrup
2 tbsp milk or heavy cream
Equipment
large bowlwhiskspatulasmall bowlforkgreased/parchment lined pan (8x8)oventoothpick
Tips
Preheat your oven to 350 F (180C).
Check frequently after about 40 minutes and tent with foil if crumble appears to be browning too quickly.