M&M Cookie Bars! - Jane's Patisserie (2024)

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Super chocolatey cookie dough full of M&M’s, making THE most delicious M&M cookie bars ever!

M&M Cookie Bars! - Jane's Patisserie (1)

These are deliciously easy bakes that you can make in an afternoon and enjoy so quickly.. cookie bars are 100% one of my favourite bakes to make and I adore them.

M&M recipes

I love M&Ms more than most chocolates, because I just want to snack on them all of the time. They tend to bake well and stay so bright and colourful, making sure anything looks perfect. The chocolate style cookie base marries so well with the M&M’s. If you eat the cookie bars when they’re still slightly warm, the M&Ms are gooey, crunchy and amazing.

So far I don’t have masses of M&M related recipes because everything would be so similar, but my is a curveball amongst these cookie bars along with my and .

I find that M&Ms always keep their colour well when baking, and you can use any of the M&Ms that you fancy. I tend to just use the regular M&Ms as I prefer them, but don’t worry about even using a mixture!

M&M Cookie Bars! - Jane's Patisserie (2)

M&M Cookie Bars! - Jane's Patisserie (3)

Cookie Bar recipes

I have been after a cookie traybake recipe for SO LONG. I have struggled so many times as a majority of the recipes are american, and therefore in ‘Cup’ measurements, and no offence to anyone… but I hate cup measurements. I just find them so unreliable and it just doesn’t make sense too me.

I did have to spend plenty of time however googling each weight of ‘cup’ measurement to find out what it was in grams, and when it didn’t entirely make sense I took a random stab at scaling up or down so make it a whole amount, and oh my days THESE ARE SO GOOD.

Cookie bars are genuinely just cookies baked into traybake form and I adore it. They are different to brownies and aren’t cake bars… they are COOKIE bars. The amount of love for a cookie bar is insane. My mini egg cookie bars are always super popular, as well as my caramel gingerbread cookie bars.

M&M Cookie Bars! - Jane's Patisserie (4)

M&M Cookie Bars! - Jane's Patisserie (5)

Cookie Dough

A cookie dough like this is super similar to other cookie bar recipes as well as cookies on my blog – I have endless amounts of cookie dough related recipes now that you will not be lost for ideas. Maybe, there are too many… but the cookie dough is always super similar.

  • Butter – Whether its baking spread, butter, or a margarine – they all work for cookie bars
  • Sugar – I use a mixture of white granulated sugar and light brown soft sugar for these
  • Egg – I tend to use medium eggs in my bakes, but you can use one large egg instead of a medium
  • Vanilla – it is always optional, but adds a delicious flavour.
  • Flour – Always use plain flour in your cookies!! You don’t want self raising flour as it will create a cake like cookie. I do also use cornflour as it adds a nice texture, but you can remove it and add 25g more flour.
  • Cocoa – I use a strong cocoa powder when baking because I like a really rich chocolate flavour in my chocolate bakes
  • Raising agents – For these, I use bicarbonate of soda… it’s a key ingredient in a lot of cookie bakes because it creates a good texture
  • Salt – I always add sea salt to my cookie dough related bakes because it’s delicious, but you can definitely leave it out, or use salted butter

M&M Cookie Bars! - Jane's Patisserie (6)

M&M Cookie Bars! - Jane's Patisserie (7)

Tips & Tricks

I always bake my M&M cookie bars into a 9″ square tin as it creates the perfect bake for me. I bake for the same amount of time each time and it creates a delicious slightly soft cookie bar. If you prefer a crunchier cookie however, you just need to bake for a few extra minutes.

These will last for 4-5+ days at room temp, but you can freeze them for 3+ months after baking.

If you want to make these but with a plain vanilla cookie dough, you can remove the cocoa powder and add on 100g more plain flour.

M&M Cookie Bars! - Jane's Patisserie (8)

M&M Cookie Bars! - Jane's Patisserie (9)

M&M Cookie Bars! - Jane's Patisserie (10)

M&M Cookie Bars! - Jane's Patisserie (11)

M&M Cookie Bars!

Super chocolatey cookie dough full of M&M's, making THE most delicious M&M cookie bars ever!

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Category: Traybakes

Type: Cookie Bars

Keyword: M&Ms

Prep Time: 10 minutes minutes

Cook Time: 20 minutes minutes

Cooling time: 2 hours hours

Total Time: 2 hours hours 30 minutes minutes

Servings: 16 Pieces

Author: Jane's Patisserie

Ingredients

  • 200 g plain flour
  • 50 g cocoa powder
  • 1 tsp bicarbonate of soda
  • 1/2 tsp salt
  • 1 tbsp cornflour
  • 115 g unsalted butter/baking spread
  • 55 g granulated sugar
  • 135 g light brown sugar
  • 1 Medium egg
  • 1/2 tsp vanilla extract
  • 300 g M&Ms

Grams - Ounces

Instructions

  • Preheat your oven to 190ºc/170ºc fan and line a 9x9inch square tin with parchment paper, and leave to the side for now.

  • In a larger bowl, melt the butter. Add in the two sugars, and whisk for about 2 minutes so the sugar starts to dissolve and the mixture is smooth.

  • Add in the egg and vanilla extract, and mix

  • Add the plain flour, cocoa powder, bicarbonate, salt and cornflour and mix to a cookie dough

  • Add in the dry Ingredients, and all but a small handful of M&Ms, and mix until a thick cookie dough is formed.

  • Press the mixture into the bottom of the tin and press in the handful of M&Ms into the top for decoration.

  • Bake the traybake in the oven for 18-20 minutes, until the top of the cookie bake looks ‘dry’

  • Leave the cookie bake to cool for about 10 minutes, then leave to cool fully on a wire rack. Cut the bake into 4×4 for decent sizes, or 5×5 for smaller ones! Enjoy!

Notes

  • I used oodles of Chocolate M&Ms in this recipe, and the colour on them stayed perfect even after baking, but I’m sure it would work with the Crunchy M&M’s, the Peanut M&M’s, or even smarties for example!
  • These delicious beings will last in an airtight container for up to 4-5 days, but honestly, they’ll be eaten before then.
  • You can find a cookie version of this recipe here!

ENJOY!

Find my other Cookie & Traybake Recipes on myRecipes Page!

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©Jane’s Patisserie. All images & content are copyright protected. Do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words and credit me, or link back to this post for the recipe.

M&M Cookie Bars! - Jane's Patisserie (2024)

FAQs

Can you eat M&M cookie dough? ›

And don't worry, it's completely safe to eat! Indulge in the delicious and fun treat of Edible M&M Cookie Dough! Mix and match the colors of the M&Ms to match different holidays and celebrations for a versatile and festive dessert.

Why is the chocolate chip cookie Massachusetts official state cookie? ›

Massachusetts: Chocolate Chip

The chocolate chip cookie was designated the official cookie of the Commonwealth on July 9, 1997. A third grade class from Somerset proposed the bill to honor the cookie invented in 1930 at the Toll House Restaurant in Whitman.

Is all cookie dough edible? ›

Not all cookie dough is safe to eat before baking it. Both the flour and the egg ingredients should be cooked for food safety reasons. What makes Pillsbury's refrigerated cookie and brownie doughs ready to eat raw? We use heat treated flour and pasteurized eggs so you can now safely enjoy our cookie dough baked or raw.

Is frozen cookie dough edible? ›

Prepare cookie dough as indicated in your recipe, including any refrigerator chilling time. Wrap logs tightly in plastic wrap and then place in an airtight container or Ziploc bag and freeze for up to 3 months. Thaw overnight in the refrigerator before slicing and baking according to recipe instructions.

What classic cookie was invented by accident in Massachusetts? ›

It is, therefore, tough to believe that the chocolate chip cookie, one of the world's most popular sweet snacks, was created by chance. Ruth Graves Wakefield and her husband, Kenneth, were running the Toll House Inn on Route 18 near Whitman, Massachusetts when they invented the chocolate chip cookie in 1930.

What cookie is named after Massachusetts? ›

The first Fig Newtons were baked at the F. A. Kennedy Steam Bakery in 1891. The product was named after the city of Newton, Massachusetts.

What state has the first cookie? ›

The New Mexico Legislature adopted the biscochito (bizcochito) as the official state cookie in 1989. This act made New Mexico the first state to have an official state cookie.

Is it OK to eat chocolate cookie dough? ›

Alternatively, you can easily make one using only a few ingredients. Although it's tempting to eat raw cookie dough, it contains uncooked eggs and flour and is not worth the risk.

Can you eat a tube of cookie dough? ›

Yes. We use pasteurized eggs for safety. Pasteruization is a process of heating eggs to kill harmful bacteria and thus making them safe to eat raw.

Is it OK to eat sugar cookie dough? ›

FAQs and Expert Tips. Is it safe to eat sugar cookie dough? Absolutely. Because there are no raw eggs in this cookie dough, and the flour is heat treated to kill any harmful bacteria (like e-coli) that could be living in the flour, the dough is totally safe to eat.

Can I eat M&S cookie dough raw? ›

Safety Warning: This is a raw product and must be fully cooked before eating.

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