88% would make this again

M and M Cookies

Vish G

August 9, 2026

4.6
(80)

M and M cookies that will make your kitchen smell like a bakery. Your family will love to demolish these little sweet snacks that are perfect to make and bake on any afternoon. We’ve baked batches of these to get them chewy in the center and slightly crispy on the edges for an balanced and exceptionally yummy cookie taste with a pop of colour to make them look like a party. Grab your favourite M&M’s or Smarties candy and let’s get baking this recipe.

M and M Cookies

PREP TIME

20 MIN

COOK TIME

10 MIN

SERVINGS

14

Ingredients

  • 150g unsalted butter, melted and cooled slightly (10½ tbsp)
  • 130g light brown sugar (⅔ cup, packed)
  • 75g caster sugar (⅓ cup + 1 tbsp)
  • 1 large egg
  • 1 large egg yolk
  • 2 tsp good quality vanilla extract
  • 220g plain flour (1¾ cups)
  • ¾ tsp baking soda (bicarbonate of soda)
  • 1 tsp cornflour (cornstarch)
  • ¾ tsp fine salt
  • 175g M&M’s or Smarties (about 1¼ cups)
  • Flaky sea salt, for sprinkling (optional but recommended)

Instructions

  • Melt the butter and leave it to cool for about 5 to 10 minutes. It should still be liquid but it shouldn’t be hot.
  • In a large bowl, whisk the melted butter, light brown sugar and caster sugar together until well combined.
  • Add the egg, egg yolk and vanilla extract. Whisk for about 30 seconds until the mixture looks smooth and slightly thickened.
  • In a separate bowl, mix together the flour, baking soda, cornflour and fine salt.
  • Add the dry ingredients to the butter and sugar mixture. Stir gently until you can no longer see any dry flour. Do not keep mixing once the dough has come together.
  • Set aside about 50g of the M&M’s or Smarties. Gently fold the remaining 125g through the dough, trying not to crush the chocolate pieces.
  • Cover the bowl and place the dough in the fridge for 45 to 60 minutes. Do not skip this step. Chilling the dough helps control how much the cookies spread, gives the flavours time to develop and helps you get crisp edges with a thicker chewy centre.
  • While the dough is chilling, heat your oven to 180°C conventional or 160°C fan. Line a baking tray with baking paper.
  • Once chilled, divide the dough into 14 to 16 pieces, about 55 to 60g each. Roll each piece into a ball. Keep the balls slightly taller rather than pressing them flat.
  • Place the dough balls on the prepared baking tray, leaving plenty of room between them. Bake in batches rather than crowding the tray. Six to eight cookies per tray is ideal.
  • Press a few of the reserved M and M’s or Smarties into the top of each dough ball before baking. This gives the finished cookies plenty of colourful chocolate pieces on the surface.
  • Bake for 10 to 12 minutes. The edges should look golden and set, while the centres should still look soft and slightly underbaked. This is important. Do not wait for the centres to look completely cooked or the cookies may lose their chewy texture.
  • Remove the tray from the oven and if you like give it one gentle tap on the worktop. This helps your cookies settle slightly while keeping their thicker, chewy centres.
  • Immediately sprinkle a small pinch of flaky sea salt over each cookie while they are still warm. Optional but highly recommended.
  • Leave the cookies on the baking tray for 5 minutes. They will continue cooking and firming up from the residual heat while the centres stay soft and chewy.
  • Carefully transfer the cookies to a cooling rack and leave them to cool for at least 10 minutes before eating.
  • For the best combination of textures enjoy them while they are still slightly warm. The edges should be crispy and caramelised while the centres remain soft ‘n’ chewy and packed with M and M’s or Smarties.

People Also Asked..

How do you make M&M cookies?+
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Nutrition Facts

Calories

261

Total Fats

12.5 g

Saturated Fats

6.8 g

Cholesterol

49 mg

Sodium

146 mg

Total Carbohydrates

35.3 g

Sugars

21.4 g

Protein

2.9 g

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