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    Home » Recipes » Sweet Treats » Chocolate

    Chocolate Topped Oat Bars 

    Published: September 11, 2025 by Andrea · This post may contain affiliate links. Please read the disclosures and disclaimers page for details.

    Jump to Recipe Pin Recipe

    If you love a treat that’s both chewy and chocolatey then this recipe for oat bars topped with chocolate is a must-try. They’re perfect to enjoy as an afternoon snack, dessert or even a lunchbox favourite.

    chocolate topped oat bars

    These chocolate oat bars are super easy to make and best of all, they only require a few simple ingredients. The recipe is super quick and provides the perfect balance of oats and chocolate. The bars have a thin oat layer with a thin layer of chocolate and they go perfectly with a cup of tea or coffee. They’re wholesome yet indulgent and the chewy oat base pairs nicely with the smooth dark chocolate layer.

    Why You’ll Love These Chocolate Topped Oat Bars

    • Quick and easy – made with pantry staples and ready in under an hour.
    • Customisable – add nuts, dried fruit or seeds to the oat base.
    • Make-ahead friendly – they keep well in the fridge or freezer and can even last at room temperature for a few days.
    • Balanced snack – oats give a hearty texture while chocolate satisfies your sweet tooth.

    Ingredients for Chocolate Topped Oat Bars

    For the full list of ingredients and measurements, scroll to the recipe card below.

    • Butter – use salted or unsalted butter whichever you prefer.
    • Golden syrup – if you don't have golden syrup, you can use honey as a substitute.
    • Sugar – I use caster or superfine sugar but you can also use granulated instead.
    • Oats – use any type of oats but rolled oats work best.
    • Chocolate – use dark chocolate for the richer flavour.
    chocolate topped oat bars

    How to Make Chocolate Oat Bars

    Preheat the oven

    Start by preheating the oven to 180°C and line an 8-inch (20cm) square tin with baking paper.

    Melt the butter

    To a microwavable bowl, add the butter and melt in the microwave at 25 second increments. 

    Mix in the golden syrup and sugar

    Stir in the golden syrup and sugar then mix until smooth.

    Mix in the oats 

    Fold in the oats and mix well ensuring they are coated well.

    Add mixture to baking tin 

    Add the oats to the baking tin and press the mixture firmly into the tin then smooth using a palette knife. 

    Bake 

    Bake for 20 - 25 minutes until golden at the edges.

    Melt the chocolate 

    Add the chocolate to a microwavable bowl and melt in the microwave at 20 second increments until fully melted. Watch carefully to avoid overheating the chocolate and making it grainy. 

    Top the oat bars with the chocolate 

    Use a palette knife and spread the melted chocolate evenly over the cooled oat base. 

    Refrigerate 

    Refrigerate for 1 hour or until the chocolate has set then cut into 16 bars and enjoy!

    Recipe Tips

    • If you’re a peanut butter lover then add 2 tablespoon peanut butter to the butter before you and the oats. You can also add peanut butter into the melted chocolate before topping.
    • For a fruity boost, add chopped dried cranberries, raisins, apricots or dates.
    • If you love nuts then mix in chopped almonds, walnuts, pumpkin seeds or sunflower seeds with the oats.
    • Sprinkle flaky sea salt on top of the chocolate layer for a sweet-salty finish.

    Storage

    These bars keep well in an airtight container at room temperature for a few days or in the fridge for up to 1 week. They also freeze well. Just wrap individually for a quick grab-and-go snack.

    Nutrition

    Nutrition based on 1 serving - Calories: 160kcal | Fat: 8.7g | Saturates: 5.1g | Carbs: 17.7g | Sugar: 10.0g | Fibre: 1.1g | Protein: 1.8g | Salt: 0.16g.

    chocolate topped oat bars

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    Print Recipe Pin Recipe

    Chocolate Topped Oat Bars 

    These chocolate oat bars are chewy and chocolatey and make the perfect after dinner treat.
    Prep Time5 minutes mins
    Cook Time20 minutes mins
    Total Time25 minutes mins
    Author: Andrea
    Yield: 16 servings
    Calories: 160kcal

    Ingredients

    • 115g salted butter
    • 60g golden syrup
    • 65g caster sugar
    • 200g rolled oats
    • 100g dark chocolate good quality

    Instructions

    • Preheat oven to gas mark 4/350oC/180°C (160°FC fan) and line an 8-inch (20cm) square tin with baking paper.
    • Add the butter to a microwavable bowl and melt in the microwave at 25 second increments. You can also melt the butter in a saucepan. Mix in the golden syrup and sugar then mix in the oats, ensuring the oats are well coated.
    • Press the oat mixture firmly into the prepared tin then bake for 20 - 25 minutes until golden at the edges.
    • In microwavable bowl, melt the chocolate in the microwave at 20 second increments. Watch carefully to avoid overheating the chocolate and making it grainy. You’ll need to take the chocolate out as soon as its melts.
    • Spread the melted chocolate evenly over the cooled oat base. Refrigerate for 1 hour or until the chocolate has set. Cut into 16 bars and enjoy!

    More Chocolate

    • Chocolate Caramel Rice Krispie Treats
    • chocolate chip cookies
      Salted Chocolate Chip Cookies
    • Chunky Mini Egg Cookies
      Chunky Mini Egg Cookies
    • Chocolate Oat Bars
      Chocolate Chip Oat Bars

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    Meet Andrea!

    Hi, I’m Andrea and I am the writer and food photographer behind Simply Balanced Home Cooking. I share a selection of recipes and provide step by step instructions to help my readers get the best results from their time in the kitchen.

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