A moist and tender pumpkin-spiced coffee cake with a buttery cinnamon brown sugar crumb topping, perfect for breakfast, snack, or a cozy treat.
Use cold butter cubed and mix just until crumbly to keep topping crunchy., Make double batch of crumb topping as some tends to fall off and disappears!, Optional mix-ins: 1/2 cup chopped pecans or walnuts in crumb or on top for crunch., Optional mix-ins: 1/2 cup chocolate chips or dried cranberries into the batter for twist., Oil can be swapped 1:1 with melted unsalted butter for richer cake; replacing up to half with Greek yogurt or sour cream adds moisture., Maple glaze option: whisk 1/2 cup powdered sugar, 1-2 tbsp maple syrup, splash of milk to drizzle over warm cake., Make gluten-free using 1:1 gluten-free flour blend plus xanthan gum (if needed)., Fresh pumpkin puree can replace canned; drain excess water before use., Bake this cake up to 2 days ahead, keep covered at room temperature to maintain crumb texture., Store leftovers in airtight container refrigerated up to 5 days or frozen up to 3 months., Reheat from frozen by thawing overnight in refrigerator and warming in 300°F oven about 10 minutes.