Ingredients
Cake
- 3/4 cup granulated sugar
- 1/2 cup unsalted butter, softened
- 1 1/2 teaspoons vanilla extract
- 3 large eggs
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1 teaspoon baking powder
- 1/4 teaspoon kosher salt
- 1 cup sour cream
Streusel Filling
- 3 tablespoons butter, melted
- 1 cup packed brown sugar
- 1 cup chopped walnuts
- 2 teaspoons ground cinnamon
Instructions
1. Preheat & Prep
- Preheat oven to 350°F (175°C).
- Grease a bundt pan thoroughly.
2. Cream Butter & Sugar
- Beat butter and sugar for 4–5 minutes until light and fluffy.
3. Add Eggs & Vanilla
- Add eggs one at a time, mixing well after each addition.
- Stir in vanilla extract.
4. Combine Dry Ingredients
- In a separate bowl, whisk flour, baking powder, baking soda, and salt.
5. Build the Batter
- Alternate adding dry ingredients and sour cream into the butter mixture.
- Mix until just combined.
6. Make Streusel
- Combine melted butter, brown sugar, walnuts, and cinnamon.
- Mix until crumbly and well combined.
7. Layer the Cake
- Pour half the batter into the bundt pan and smooth.
- Sprinkle streusel evenly over the batter and lightly press down.
- Add remaining batter and smooth the top.
8. Bake
- Bake for 45–50 minutes, or until a toothpick comes out clean.
9. Cool & Release
- Cool in pan for 15 minutes.
- Run a knife along edges, then invert onto a cooling rack.
Notes
- Thick batter is normal: Use a spatula to spread evenly.
- Don’t overmix: Keeps the cake light and tender.
- Grease well: Especially important for bundt pans to avoid sticking.