Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- In a large mixing bowl, whisk together the melted butter, brown sugar, and granulated sugar until smooth.
- Add in the eggs and vanilla extract, whisking until thick and glossy.
- In a separate bowl, sift together flour, cream of tartar, baking soda, and salt. Gradually mix this with wet ingredients.
- Mix granulated sugar and cinnamon in a small bowl. Add melted butter until it resembles wet sand.
- Spread half the blondie batter in the baking dish, sprinkle with cinnamon-sugar mixture, and dollop the remaining batter on top.
- Bake for 30-35 minutes until edges are golden brown and a toothpick comes out with moist crumbs.
- Cool for 20 minutes, then lift out using parchment paper, slice into squares, and serve.
Nutrition
Notes
Avoid overmixing the batter to keep blondies light and chewy. Customize with nuts or chocolate chips for variations.
