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Recipe

Servings

16 bars 1×

Serves 16 barsPrep 15 minCook 5 minTotal 1H20 min

Ingredients

  • 2 cups (180 g) old-fashioned rolled oats
  • ½ cup (135 g) smooth peanut butter
  • ⅓ cup (115 g) pure maple syrup
  • 1 teaspoon vanilla extract
  • ¼ teaspoon fine salt
  • ½ cup (85 g) dark or semi-sweet chocolate chips, optional

Method

  1. Prepare the tin. Line an 8-inch square baking tin with parchment paper, leaving some excess paper over two sides. The overhang will allow the chilled mixture to be lifted out.
  2. Warm the binder. Add the peanut butter and maple syrup to a small saucepan. Warm over low heat for 2–3 minutes, stirring continuously, until smooth and pourable. Do not boil the mixture. Alternatively, microwave it in short 20-second intervals, stirring between each interval.
  3. Add the flavouring. Remove the saucepan from the heat. Stir in the vanilla extract and salt.
  4. Combine with the oats. Place the rolled oats in a large mixing bowl. Pour over the warm peanut butter mixture. Stir until the oats are evenly coated and no dry patches remain.
  5. Add optional ingredients. Allow the mixture to cool for 2–3 minutes, then fold in the chocolate chips. Waiting briefly prevents the chips from melting completely. If using dried fruit, nuts, seeds, or coconut instead, they can be added immediately.
  6. Press into the tin. Transfer the mixture to the prepared tin. Spread it into an even layer. Press down firmly with a spatula, the base of a glass, or the back of a spoon. Pay particular attention to the corners and edges.
  7. Chill. Refrigerate for at least 1 hour, or until the slab feels firm in the centre.
  8. Slice. Lift the slab from the tin using the parchment paper. Cut into 16 bars with a sharp knife. For cleaner edges, chill the slab for an additional 30 minutes before slicing.

No-Bake Peanut Butter Oat Bars (Snack)

Stack of chewy no-bake peanut butter oat bars on a cream ceramic plate

These no-bake peanut butter oat bars use rolled oats, peanut butter, maple syrup, vanilla, and salt. The mixture is warmed briefly, pressed into a tin, and chilled until firm. No oven is required.

The bars are chewy rather than crisp, with enough structure to pack for a snack or serve with breakfast. Chocolate chips, dried fruit, seeds, or coconut can be added without changing the basic method.

JUMP TO RECIPE

Intro

A reliable no-bake bar depends on three controls: the ratio of dry ingredients to binder, firm compression in the tin, and sufficient chilling time.

This version uses maple syrup as the binder and sweetener. Honey can be used instead, although honey is not suitable for children under 12 months. Creamy peanut butter gives the smoothest texture, while crunchy peanut butter adds a firmer nutty texture.

The bars should be stored in the refrigerator. They become softer when left in a warm kitchen and firmer after additional chilling. For a related oat-bar format, see the BBC Food no-bake fruity oat bars.

Rolled oats, peanut butter, maple syrup, and other ingredients arranged on a kitchen counter

Recipe

Servings

Makes 16 bars

Times

  • Prep time: 15 minutes
  • Cook time: 5 minutes
  • Chill time: 1 hour
  • Total time: 1 hour 20 minutes

Ingredients

  • 2 cups (180 g) old-fashioned rolled oats
  • ½ cup (135 g) smooth peanut butter
  • ⅓ cup (115 g) pure maple syrup
  • 1 teaspoon vanilla extract
  • ¼ teaspoon fine salt
  • ½ cup (85 g) dark or semi-sweet chocolate chips, optional

Equipment

  • 20 cm (8-inch) square baking tin
  • Parchment paper
  • Small saucepan or microwave-safe bowl
  • Mixing bowl
  • Spatula or flat-bottomed glass

Method

  1. Prepare the tin. Line an 8-inch square baking tin with parchment paper, leaving some excess paper over two sides. The overhang will allow the chilled mixture to be lifted out.

  2. Warm the binder. Add the peanut butter and maple syrup to a small saucepan. Warm over low heat for 2–3 minutes, stirring continuously, until smooth and pourable. Do not boil the mixture. Alternatively, microwave it in short 20-second intervals, stirring between each interval.

  3. Add the flavouring. Remove the saucepan from the heat. Stir in the vanilla extract and salt.

  4. Combine with the oats. Place the rolled oats in a large mixing bowl. Pour over the warm peanut butter mixture. Stir until the oats are evenly coated and no dry patches remain.

  5. Add optional ingredients. Allow the mixture to cool for 2–3 minutes, then fold in the chocolate chips. Waiting briefly prevents the chips from melting completely. If using dried fruit, nuts, seeds, or coconut instead, they can be added immediately.

  6. Press into the tin. Transfer the mixture to the prepared tin. Spread it into an even layer. Press down firmly with a spatula, the base of a glass, or the back of a spoon. Pay particular attention to the corners and edges.

  7. Chill. Refrigerate for at least 1 hour, or until the slab feels firm in the centre.

  8. Slice. Lift the slab from the tin using the parchment paper. Cut into 16 bars with a sharp knife. For cleaner edges, chill the slab for an additional 30 minutes before slicing.

Peanut butter oat mixture being pressed firmly into a parchment-lined square tin

Tips

  • Use rolled oats. Old-fashioned rolled oats provide a chewy texture and enough surface area for the binder to coat them. Quick oats produce a softer, denser bar.
  • Measure the maple syrup accurately. Too little liquid will make the bars crumbly. Too much will produce a sticky mixture that does not set firmly.
  • Warm gently. Peanut butter can separate or scorch when overheated. Low heat is sufficient.
  • Press firmly. Compression is not optional. Loose packing is the most common cause of bars that fall apart.
  • Cool before adding chocolate chips. If the binder is hot, the chocolate will melt into the mixture rather than remain in distinct pieces.
  • Use parchment paper. Greasing alone makes the bars more difficult to remove and slice.
  • Adjust only after mixing. If the mixture appears dry, add 1 tablespoon of peanut butter or maple syrup. If it appears wet, add 2–3 tablespoons of oats.

Sliced no-bake peanut butter oat bars with visible oats and chocolate chips

Variations

Banana peanut butter bars

Mash one small ripe banana and stir it into the warm peanut butter mixture. Reduce the maple syrup to ¼ cup. The finished bars will be softer and should be kept refrigerated.

Cranberry seed bars

Replace the chocolate chips with ¼ cup dried cranberries and ¼ cup pumpkin or sunflower seeds. Check the packet labels if the bars are being prepared for someone with allergies.

Coconut bars

Add ½ cup unsweetened desiccated coconut with the oats. The coconut absorbs some moisture, so add 1 extra tablespoon of maple syrup if the mixture looks dry.

Chocolate peanut butter bars

Stir 2 tablespoons unsweetened cocoa powder into the warmed peanut butter and maple syrup. Add 1–2 tablespoons of extra maple syrup if the mixture becomes difficult to stir.

Nut-free bars

Replace the peanut butter with sunflower-seed butter. Check that the oats, chocolate chips, and other additions are produced in a facility suitable for the intended dietary requirements.

Vegan bars

Use maple syrup rather than honey and confirm that the chocolate chips are dairy-free. The base recipe is otherwise suitable for a vegan preparation.

Gluten-free bars

Use oats labelled and certified gluten-free. Oats are naturally gluten-free, but cross-contact can occur during growing, processing, and packaging.

Storage

Store the bars in an airtight container in the refrigerator for up to 1 week. Place parchment paper between layers to prevent sticking.

The bars can be frozen for up to 3 months. Wrap them individually or separate layers with parchment paper, then place them in a freezer-safe container. Thaw for 10–15 minutes at room temperature or eat them chilled.

Do not serve bars made with honey to children under 1 year. Discard the bars if they develop mould, an unusual smell, or a slimy texture.

FAQ

Why are my peanut butter oat bars falling apart?

The mixture may not have enough binder, or it may not have been compressed firmly enough. Return the mixture to a bowl, stir in 1 tablespoon of peanut butter or maple syrup, and press it into the tin again. Chill for longer before slicing.

Can I make these bars without maple syrup?

Yes. Use honey in an equal quantity, provided the bars are not being served to an infant under 1 year. Agave syrup can also be used, although the sweetness and texture may differ.

Can I use quick oats?

Yes, but the texture will be softer and more compact. Do not use steel-cut oats because they remain too firm and coarse in a no-bake mixture.

Do the bars need to be refrigerated?

Refrigeration is recommended because it firms the texture and extends storage quality. They can be transported for a short period in a cool insulated bag, but they will soften in warm conditions.

Can I reduce the sweetness?

Reduce the maple syrup by up to 2 tablespoons, but do not remove it completely. The syrup acts as both sweetener and binder. If less syrup is used, the bars may not hold together.

Can I use natural peanut butter?

Yes, but stir the peanut butter thoroughly before measuring so the oil and solids are evenly combined. Very runny natural peanut butter may require an extra 2–3 tablespoons of oats.

How do I cut clean bars?

Chill the slab until completely firm. Use a sharp knife and wipe the blade between cuts. For the most uniform edges, chill the slab for an extra 30 minutes before slicing.

Nutrition

Estimated per bar, based on 16 bars and excluding optional chocolate chips:

  • Calories: 145 kcal
  • Carbohydrates: 18 g
  • Protein: 4 g
  • Fat: 7 g
  • Saturated fat: 1 g
  • Fibre: 2 g
  • Sugar: 7 g
  • Sodium: 80 mg

Nutritional values are estimates and vary according to the brands and quantities used.