Thursday, September 29, 2022
HomeCakeRaspberry Crumble Bars! - Jane's Patisserie

Raspberry Crumble Bars! – Jane’s Patisserie

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Fruity and scrumptious raspberry crumble bars with an oaty crumble base, raspberry filling, and much more scrumptious crumble on prime!

Say hey to a number of the most scrumptious bits of heaven you’ll ever eat… these raspberry crumble bars. They’re HEAVENLY and simply so extremely moreish and delicious. 


So yeah, one other traybake so as to add to my by no means ending roster of bakes that I’m at all times in love with. Truthfully, you probably have adopted me for some time you’ll know {that a} traybake associated bake is certainly one of my favorite issues ever and that’ll by no means change. 

Traybake can are available in many a type, equivalent to brownies, blondies, cookie bars, flapjacks and so forth. These raspberry crumble bars are a brand new one so as to add to the checklist of goodness.

All of my traybake recipes, if I will help it, are made into a 9″ sq. tin. That is for ease, and in order that I scale back the quantity of fine details it’s good to purchase! I at all times use this traybake tin


So everyone knows what a crumble is true? Its one of the vital iconic traditional issues you’ll be able to ever devour. I’ve different crumble associated bakes on my weblog equivalent to my apple crumble traybake, and even my apple crumble cupcakes.. however this one? Oh that is on one other league. 

It isn’t fairly ‘crumble’ to the concept of a traditional dessert – however its a crumble like oaty scrumptious combination of elements that create the most effective base and topping for these bars. 

  • Oats – for this bake, I wished an oaty flavour to return by to go with the raspberries and in addition create a extra textured crumble. 
  • Flour – an apparent one, however plain flour is a should!
  • Sugar – I made a decision to make use of mild brown smooth sugar, however this may work properly with different sugars equivalent to caster sugar, and even darkish brown smooth sugar. 
  • Elevating brokers – this one might sound somewhat odd, however belief me – you need the tiny raise from the baking powder!
  • Butter – I take advantage of unsalted butter as at all times, however a salted butter would work properly additionally. I might keep away from any baking spreads of margarines as they’re too smooth for the crumble combination. 


The principle half proper? The raspberries! A scrumptious candy and sharp combination of heaven. I made a decision to not simply add in some raspberries and hope for the most effective, and I didn’t simply need to do a layer of jam as some recipes do… I wished to stage it up and make a mix! 

  • Raspberries – So for ease, I might advocate recent berries. You want to have the ability to mash them up and frozen would make this too laborious. You may attempt thawing frozen berries, however you would wish to get rid of any extra liquid earlier than utilizing them. 
  • Jam – A raspberry jam – a traditional! Seedless, with seed, easy, lumpy… no matter! 
  • Lemon – The lemon is required to chop by the sharpness of the raspberry but in addition convey out the flavour splendidly. 
  • Cornflour – A thickening agent on this case. Please use it, it’s significantly better than simply utilizing plain flour. 

It might sound foolish within the technique, however truthfully one of the simplest ways I discovered to make this filling was so as to add the elements to a bowl and mash them barely with a potato masher. It meant I nonetheless had texture, however all the things had combined in properly sufficient. 


As you’ll be able to see from the images there are layers to those raspberry crumble bars. It’s pretty merely although – a majority of the crumble combine goes into the lined 9×9″ sq. tin and also you press it down firmly. I discovered 500g of the crumble combine was excellent for this layer after some experimenting with ratios. 

Then, you prime the bottom with the mashed raspberry combine and unfold evenly, after which sprinkle over the remainder of the crumble combine. This a part of the crumble combine doesn’t want urgent down as it might flip right into a raspberry mush. 


For a bake like this, and mainly any bake ever until said in any other case, you want a preheated oven. I’ve a fan oven so I bake at 180ºc on the fan setting, however you probably have a daily oven it might be 200ºc. That is additionally so far as I’m conscious gasoline mark 6, or 400ºf if that helps – though I’ve by no means baked in a gasoline oven. 

The temperature is barely increased in comparison with different traybake recipes I’ve accomplished, however you need the additional heat to essentially begin toasting and baking the crumble combine and it actually helps. 

The combination may be barely smooth, so ensure that the crumble combination is popping splendidly golden and exquisite earlier than taking out of the oven. 

Suggestions and Methods 

So in relation to making a bake like this, it’s surprisingly straightforward, however there are methods to assist ensure that it really works splendidly. When making the crumble combine I merely use a big bowl, add the elements, and rub them along with my fingertips. This implies you’ll be able to nonetheless have the fantastic texture of the oats within the crumble with out by accident destroying them in a meals processor or mixer.

For the raspberry combine, I genuinely simply use one other bowl and a potato masher – however a big spoon or fork works properly, it simply takes a bit longer. You don’t need to over combine this both as you need texture to the combination. 

As talked about above, I take advantage of this traybake tin as its the proper measurement. 


  • 175 g rolled oats
  • 200 g plain flour
  • 150 g mild brown smooth sugar
  • 1/2 tsp baking powder
  • 175 g unsalted butter (chilly and cubed)


  • 400 g raspberries
  • 150 g raspberry jam
  • 1 tbsp lemon juice
  • 1 tbsp cornflour


  • Preheat the oven to 180ºc/160ºfan and line a 9×9″ sq. tin with parchment paper.

  • In a big bowl, add the rolled oats, plain flour, mild brown smooth sugar, baking powder and unsalted butter.

  • Rub the elements collectively together with your fingers till the combination resembles bread crumbs and there aren’t any giant lumps of butter left.


  • In a brand new bowl, add the recent raspberries, raspberry jam, lemon juice and cornflour.

  • Mash the elements collectively till they’re mixed, however nonetheless leaving some texture to the raspberries.


  • Pour 500g of the oaty crumble combine into the lined tin and press down firmly.

  • Pour the filling onto of the oats, and unfold.

  • Sprinkle over the remainder of the crumble combine

  • Bake the raspberry crumble bars within the oven for 30+ minutes, or till golden and exquisite.

  • Depart the bars to chill totally earlier than portioning. Refrigerating them can generally make this simpler.

  • These beauties will final for 3+ days, greatest within the fridge
  • I take advantage of this tin for this bake 
  • The raspberries may be swapped to different berries equivalent to blackberries, blueberries, strawberries and many others, or a mix of. 

Discover my different recipes on my Recipes Web page!

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J x

© Jane’s Patisserie. All pictures & content material are copyright protected. Don’t use my pictures with out prior permission. If you wish to republish this recipe, please re-write the recipe in your individual phrases and credit score me, or hyperlink again to this put up for the recipe.




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