Go Back
–+ servings
thumbnail image of mars bar blondies

BEST Mars Bar Blondies

A blonde brownie filled with Mars Bar pieces and a caramel swirl.
No ratings yet
Print Pin
Prep Time: 10 minutes
Cook Time: 40 minutes
Cool time: 4 hours
Total Time: 4 hours 50 minutes
Servings: 16 blondies
Calories: 309kcal

Ingredients

  • 120 g Butter, melted then cooled for a few minutes
  • 130 g Caster sugar
  • 130 g Soft light brown sugar
  • 3 Medium Eggs
  • 1 Teaspoon Vanilla extract
  • 200 g Plain flour
  • 275 g Mars Bars (7 medium bars)
  • 100 g Milk chocolate chips

Caramel swirl (optional):

Instructions

  • Preheat your oven to 160℃ (140℃ if you're using a fan oven). Line an 8x8-inch tin with baking paper.
  • In a large bowl, mix together the melted butter, caster sugar and light brown sugar.
  • Stir in the eggs and vanilla extract.
  • Add all of the flour and mix well to make a smooth, thick blondie batter.
  • Chop the Mars Bars into chunks and fold them into the mixture along with the chocolate chips.
  • Put ¾ of the mixture into your lined tin and spread it out evenly. Drizzle over the caramel then use a toothpick to swirl it in. Top with the remaining blondie mixture.
  • Bake for around 35-40 minutes, until the edges are pulling away and look a deep golden brown colour. The middle should be lightly golden but still have a slight wobble.
  • Leave the blondies in the tin to cool completely then put them in the fridge for 3-4 hours to set. This will make the gooey centre turn firm and fudgy.
  • Once the blondies have set, cut them into squares and enjoy.

Notes

  • Store in an airtight container in the fridge for 1 week.

Nutrition

Serving: 1blondie | Calories: 309kcal | Carbohydrates: 36g | Protein: 2g | Fat: 12g | Saturated Fat: 7g | Monounsaturated Fat: 2g | Cholesterol: 47mg | Sodium: 22mg | Potassium: 13mg | Fiber: 1g | Sugar: 34g