Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan.
- In a mixing bowl, cream together softened butter, brown sugar, and granulated sugar using an electric mixer.
- Add in eggs, sour cream, and vanilla extract, and mix until well combined.
- In a separate bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt.
- Gradually add the dry ingredients to the wet mixture, mixing until just combined.
- Spread the batter into the prepared baking pan evenly.
- Mix cinnamon and sugar together, then sprinkle over the batter.
- Bake for 25-30 minutes until golden brown; a toothpick inserted should come out clean.
- Remove from oven and allow to cool completely in the pan.
- In a mixing bowl, combine powdered sugar, milk, and vanilla extract; whisk until smooth.
- Spread the frosting over the cooled bars and slice into squares before serving.
Nutrition
Notes
Ensuring eggs are at room temperature helps with the mixing process, and avoid overmixing for the best texture.
