Use up your leftover sourdough discard with this sourdough coffee cake. The cake is moist, fluffy, and topped with a brown sugar crumble. It is the perfect breakfast, brunch, or afternoon treat!
Preheat oven to 350°F (175°C). Grease or line a 9-inch springform pan with parchment paper.
In a separate bowl, whisk together flour, baking powder, baking soda, and salt.
In a large bowl, cream butter and sugar until light and fluffy.
Add eggs one at a time, then mix in vanilla extract, Greek yogurt, and sourdough discard.
Gradually fold in dry ingredients, mixing until just combined.
Pour batter into the prepared pan.
Make the crumble topping: In a bowl, mix brown sugar, flour, and pecans, then cut in cold butter until crumbly. Sprinkle the crumble topping evenly over the top.
Bake for 50 minutes, or until a toothpick inserted in the center comes out clean.
Let cool for 10 minutes, then remove from pan.
To make the icing, add the powdered sugar, milk, and vanilla extract to a small bowl. Whisk together and drizzle over the top of the cake. Serve warm or at room temperature. Enjoy!
Notes
Store any leftover cake in an airtight container for up to 3 days at room temperature.