Ingredients
Method
- Preheat the oven to 350°F (180°C) and grease an 8-inch (20 cm) square pan.
Crumb topping
- Mix the brown sugar, flour, and cinnamon. Add the cold butter and rub it in with your fingers until you have a lumpy, crumbly mixture.
- Put it in the fridge while you make the cake batter.
Batter
- In a bowl, mix the flour, baking powder, baking soda, and salt.
- In a separate bowl, beat the butter and sugar until smooth. Add the eggs, vanilla, and sour cream and mix.
- Add the dry ingredients and mix just until even. Add the milk and mix briefly.
- Pour half the batter into the pan and sprinkle with half the crumbs. Pour in the rest of the batter and top with the remaining crumbs.
- Bake for 32–35 minutes, no longer, until a toothpick inserted in the center comes out dry.
- Stir together all the glaze ingredients and drizzle over the cake. Slice and serve warm or at room temperature.
Notes
Dairy-free (pareve) substitutions
- Butter → dairy-free margarine or butter sticks, or refined coconut oil.
- Sour cream → soy yogurt, coconut cream, or plant-based cooking cream.
- Milk → soy, almond, or oat milk.
- Glaze → use soy, almond, or oat milk, or water.
- Keep in an airtight container at room temperature for up to 3 days, or in the fridge for up to a week.
