M&M Cookie Bars Recipe
Chewy M&M cookie bars packed with colourful M&M’s and chocolate chunks. Easy to make, golden brown, and perfect for slicing, sharing, and baking fun!
Servings 12
Calories 431kcal
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Ingredients
- 200 g Butter melted
- 125 g Golden Caster Sugar or use white caster sugar
- 125 g Light Brown Sugar
- 2 Eggs
- 2 teaspoon Vanilla Extract
- 275 g Plain Flour (all-purpose flour)
- 150 g M&M Chocolate Bar cut into chunks (or use chocolate chips instead)
- 150 g M&M's chocolate ones (or your preference)
Topping
- 50 g M&M's I used crispy M&M's but any flavour is fine.
Instructions
- Preheat the oven to 180°C (160°C fan / 350°F / Gas Mark 4) and line a 20cm (8") square baking tin or small brownie tin with parchment paper, leaving an overhang for easy removal.
- Cream together the melted butter and sugars in a large mixing bowl until pale and fluffy.200 g Butter, 125 g Golden Caster Sugar, 125 g Light Brown Sugar
- Beat in the eggs and vanilla extract until fully combined.2 Eggs, 2 teaspoon Vanilla Extract
- Stir in the plain flour until a soft cookie dough forms with no streaks of flour remaining.275 g Plain Flour (all-purpose flour)
- Fold in the M&M's and chocolate chunks (or chocolate chips).150 g M&M Chocolate Bar, 150 g M&M's
- Spoon the mixture into the lined tin and smooth the top with the back of a spoon or spatula.
- Bake in the oven for 30 minutes, or until the edges are golden brown and the centre is just set for a chewy texture. Remove from the oven and gently press a few extra M&M's into the top while still warm. Allow the M&M cookie bars to cool completely in the tin before lifting out and slicing into bars.50 g M&M's
Notes
- Sugar options: A mix of golden caster sugar and light brown sugar gives chewy bars. Use all brown sugar for extra fudgy bars.
- Chocolate: Use chocolate chunks, chips, or M&M chocolate bars. Mix M&M’s for colour and crunch.
- Chewy bars: Don’t overbake. Edges should be golden brown and the centre just set.
- Extra M&M’s: Press a few on top after baking to prevent colours running.
- Cooling: Let bars cool completely before slicing. Chilling in the fridge or freezer for 30–60 minutes speeds this up.
Nutritional Information (Approximate)
Calories: 431kcal | Carbohydrates: 60g | Protein: 8g | Fat: 18g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 30mg | Sodium: 28mg | Potassium: 151mg | Fiber: 2g | Sugar: 34g | Vitamin A: 90IU | Vitamin C: 1mg | Calcium: 65mg | Iron: 4mg
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