Ingredients
Method
- In a medium bowl, make the streusel topping. Combine 1/4 cup flour, 2/3 cup sugar, and 1 teaspoon cinnamon. Cut in the butter until the mixture resembles crumbs. Set aside.
- In a large bowl, mix the dry cake ingredients: 2 cups flour, 3/4 cup sugar, baking powder, and salt. Cut in butter until crumbly.
- Crack an egg into a 1-cup measuring cup and add milk to fill the cup. Stir in vanilla extract.
- Pour the wet mixture into the dry ingredients and stir until just combined. Don’t overmix!
- Line your slow cooker with parchment paper and spread the batter evenly.
- Sprinkle the streusel topping over the batter.
- Cover and cook on high for 2–2 1/2 hours, or until a toothpick inserted into the center of the cake comes out clean.
- Carefully lift the cake out using the parchment paper and let it cool on a rack for 10 minutes before serving.
Notes
Batch tip: Double the recipe and freeze half for later. It freezes beautifully for up to 3 months.
