Line a 20x20cm (8x8in), or 20x30cm (8x12in), tin with butter to bake the blondies.
Combine the butter and white chocolate in a bowl. Now Heat it in the microwave or a saucepan of simmering water until smooth. White chocolate is not always as easy to melt as other chocolates. It also requires less heat.
Once the butter and chocolate melt, measure out your flour and place it in a bowl.
After the,Mix the eggs, sugar, and vanilla in a large bowl until well combined.
Once the butter/chocolate mixture has melted, add it to the bowl with the egg mixture. Whisk to combine.
Now add the flour and chocolate chips to the bowl. Mix well with a spatula or spoon until combined. Bake the blondie batter in the prepared pan for 40-50 minutes or until they are firm and crackled on the top.
Let cool completely before cutting.
Enjoy! You can add any fruit, nuts, or extra chocolate chips to these blondies. Blondies can be kept in an airtight container for up to five days.
MAKE IT GLUTEN-FREE: Simply replace the flour with a gluten-free plain flour blend.