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BEST Mars Bar Cookies

Easy Mars Bar cookies filled with gooey caramel and chunks of milk chocolate.

Prep Time
15 mins
Cook Time
15 mins
Total Time
27 mins
Servings: 12 cookies
Calories: 343 kcal
Course: Dessert
Cuisine: American

Ingredients

  • 150 g butter softened at room temperature and cut into cubes (⅔ cup)
  • 130 g caster sugar (⅝ cups)
  • 100 g soft light brown sugar (½ cup)
  • 1 egg
  • 1 Teaspoon vanilla extract
  • 250 g self-raising flour (2 cups)
  • 50 g milk chocolate chips (∼2oz)
  • 4 Full-sized Mars bars chopped into small chunks (∼200g/7oz total)

Instructions

    Cup of Yum
  1. Preheat your oven to 180°C (160°C for fan ovens). Line two large baking trays with baking paper.
  2. Using an electric whisk or stand mixer, mix the butter, caster sugar and brown sugar together in a large bowl. It should look like a thick paste.
  3. Next, add the egg and the vanilla extract and mix well until smooth.
  4. Add in all of the self-raising flour and mix it in. When it starts to stick together, use your hands to press the mixture into a ball of dough.
  5. Add the chocolate chips and chopped Mars Bars. Carefully knead them into the dough with your hands.
  6. Divide the dough into 12 equal-sized pieces and roll each piece into a ball. Try to ensure the Mars Bar pieces are more towards the centre of the balls rather than the edges. This will prevent caramel spilling out and burning.
  7. Place the dough balls on your lined tray(s), making sure to leave a couple of inches between each cookie to allow space for spreading. I recommend baking 4-6 per tray.
  8. Bake the cookies, one tray at a time, for 11-12 minutes. As soon as you see a slight golden brown colour at the edges, remove them from the oven. They'll still be pale and wobbly in the middle but will firm up as they cool. Don't keep baking them or they'll end up hard and crispy.
  9. Let the cookies cool completely before removing them from the tray.

Notes

  • If the dough is too sticky, you can add more flour. If it’s too dry, add a splash of milk to help it stick together.
  • If caramel spills out of the sides while baking, you can use a large cookie cutter or spoon to gently shape the cookies back into circles while they’re still warm.

Nutrition Information

Serving 1cookie Calories 343kcal (17%) Carbohydrates 47g (16%) Protein 4g (8%) Fat 15g (23%) Saturated Fat 9g (45%) Monounsaturated Fat 3g Cholesterol 14mg (5%) Sodium 78mg (3%) Potassium 5mg (0%) Sugar 32g (64%)

Nutrition Facts

Serving: 12cookies

Amount Per Serving

Calories 343

% Daily Value*

Serving 1cookie
Calories 343kcal 17%
Carbohydrates 47g 16%
Protein 4g 8%
Fat 15g 23%
Saturated Fat 9g 45%
Monounsaturated Fat 3g 15%
Cholesterol 14mg 5%
Sodium 78mg 3%
Potassium 5mg 0%
Sugar 32g 64%

* Percent Daily Values are based on a 2,000 calorie diet.