Mars Bar cookies recipe

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Our Mars Bar cookies are baked in 12 minutes and use just five store cupboard ingredients

Mars Bar cookies
(Image credit: Future)
Makes12
SkillEasy
Preparation Time15 mins plus chilling
Cooking Time12 mins
Cost RangeCheap
Nutrition Per PortionRDA
Calories229 Kcal11%
Saturated Fat6 g30%
Fat10 g14%
Carbohydrates32 g12%

These Mars Bar cookies are made with five ingredients and can be frozen and baked straight from the freezer 

Our easy chocolate chip cookies recipe is very tasty but for something more indulgent these Mars Bar cookies are perfect. This recipe makes 12 cookies but it’s easy to scale up. Given how popular these cookies are bound to be, if you want to ensure you get your fair share making a double batch is essential.

Ingredients

  • 100g lightly salted butter, softened
  • 125g soft dark brown sugar
  • 1 free-range egg
  • 175g self-raising flour
  • 3 Mars bars, chopped roughly into quarters

WEIGHT CONVERTER

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Method

  1. Put the butter and sugar in a large bowl and beat with an electric hand mixer until pale and fluffy. Add the egg and beat again until well combined. Stir in the flour until just combined, followed by the chopped Mars bars, mixing to combine evenly.
  2. Use a dessert spoon to shape the dough into 10-12 portions, then space well apart on the lined trays (they will spread as they cook). Chill for at least 1 hour. Heat the oven to 160C Fan/ Gas 4. Bake for 12 minutes until firm at the edges and still a bit soft in the middle. Leave to cool on the tray – they’ll firm up as they cool.

Top tips for making our Mars Bar cookies 

You can make the cookies with mini chocolate bars or leftover chocolate treats from Christmas or Easter too. Alternatively, swap for a handful of roughly chopped nuts or some raisins if you want a fruity twist. 

How to freeze Mars Bar cookies?

Freeze the shaped dough on lined trays until firm, then freeze in an airtight container for up to 3 months. Bake from frozen, adding about 3 mins to the cooking time.

Can you serve cookies warm?

Yes, these cookies are delicious when enjoyed warm from the oven. It’s important to allow them to stand for 5 minutes as they require a little additional cooking time. They will have a soft, slightly gooey texture but are excellent when paired with a scoop of ice cream. 

Can I use unsalted butter for these cookies?

Yes if you only have unsalted butter it will work perfectly in this recipe. Add a generous pinch of sea salt flakes to the dough when you add the Mars Bar pieces. 

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Jessica Ransom

"I always like to keep a stash of cookies in the freezer that are ready to bake. They are the perfect treat to have to hand when you need a last minute dessert or have unexpected guests." 

To ensure even cookies with a consistent shape, we like to use an ice cream scoop.

OXO Good Grips Classic Swipe Ice Cream Scoop - View at Amazon 

OXO Good Grips Classic Swipe Ice Cream Scoop - View at Amazon 

This scoop is fitted with an easy-to-use lever which releases the ice cream from the scoop. All you have to do is squeeze the lever and it swipes around the scoop to push the ingredients out. The scoop is dishwasher-safe and has a comfortable handle. 

Consider baking a variety of treats for your guests to indulge in. These vanilla cookies are delicious and Millie's cookies are perfect with ice cream. For another chocolate treat bake, check out these Rolo cookies

Jess Meyer
Food Editor

Jess is the Group Food Editor at Future PLC, working across brands in the woman’s lifestyle group, including Woman and Home, Woman’s Weekly, Woman, Woman’s Own, Chat, womanandhome.com and Goodto.com. Hailing from the Antibodies, Jess has a background in media and video production, with many years of experience working on tv and commercial video projects. After relocating to the UK, Jess studied at Leiths School of Food and Wine in London, graduating with a diploma in culinary arts before gaining a scholarship to study at the Ecole Nationale Superieure de Patisserie (ENSP) in France, where she learned the fine art of French patisserie.

With contributions from