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M&Ms Cookies - A twist on my classic chocolate chip cookies with added colour and crunch from M&Ms (or Smarties).

M&M Cookies

A twist on my classic chocolate chip cookies with added colour and crunch from M&Ms (or Smarties).
5 from 4 votes
Active Time: 15 minutes
Cook Time: 8 minutes
Total Time: 23 minutes
PLUS Chilling: 1 hour
Servings: 20 cookies


  • 200 g unsalted butter - soft at room temperature
  • 90 g soft dark brown sugar
  • 110 g caster sugar
  • 300 g plain flour
  • 100 g milk chocolate chunks - you can also use dark or white chocolate, or a mix
  • 1 large egg
  • 1 egg yolk
  • 1 tbsp vanilla extract
  • tsp bicarbonate of soda
  • tsp salt
  • 125 g M&Ms


  • Beat together the butter (200g) and sugars (90g soft dark brown sugar and 110g caster sugar), until light in colour - this will take 2-3 minutes in an electric mixer.
  • Add the egg (1 whole large egg and 1 egg yolk) and the vanilla extract (1 tbsp) and beat until combined.
  • Sift in the dry ingredients (300g plain flour, 1½ tsp bicarbonate of soda and ⅛ tsp salt) and mix together until combined.
  • Finally, mix in the chocolate chunks (100g).
  • Divide the mixture in 20. Roll each piece of dough into a ball and then flatten it slightly, so it's about 1½cm thick. Place it onto a baking tray lined with greaseproof paper or a non-stick baking liner. Ensure the cookies are well spread out as they'll double in size in the oven. Gently push about 7 M&Ms into each cookie - Take a look at the picture below the recipe for how the cookies should look on the tray.
    Loosely cover the trays and chill in the fridge for at least an hour (up to 5 days).
  • Once the cookies have chilled, pre-heat your oven to 190°C/170°C fan.
    Bake your cookies for 8-9 minutes, so they're golden around the edges but still pale in the middle. You might find it useful to turn the tray after about 7 minutes to help them cook evenly.
  • Once baked, remove the tray from the oven and leave the cookies to cool on the tray for about 10 minutes before moving them to a wire rack to cool completely.
  • Enjoy!


❄️ Suitable for freezing
For full freezing instructions for both the baked cookies and the raw cookie dough, please take a look at my recipe for Chocolate Chip Cookies.


Calories: 232kcal | Carbohydrates: 27.5g | Protein: 2.8g | Fat: 11.9g | Saturated Fat: 7.3g | Sodium: 128.3mg | Fiber: 0.5g | Sugar: 17g

Any nutritional information provided is the estimated nutritional information per serving. Please refer to my guide to Charlotte’s Lively Kitchen nutritional information if you would like to learn more about how this is calculated.

Course: Biscuits
Cuisine: American
Author: Charlotte Oates