For the Cake
- 10 Tbsp unsalted butter, softened (1¼ sticks)
- ¾ cup granulated sugar
- 2 large eggs, room temperature
- 2 tsp vanilla extract
- 2 cups all-purpose flour
- 1 tsp baking powder
- ½ tsp baking soda
- ½ tsp salt
- 1 cup plain Greek yogurt or sour cream
- 1½ cups fresh blueberries (about 12 oz)
For the Crumb Topping
- ¾ cup all-purpose flour
- ½ cup packed light brown sugar
- ½ tsp ground cinnamon
- Pinch of salt
- 5 Tbsp cold butter, cubed