Quick and Easy Frozen Fruit Crumble

A quick and easy frozen fruit crumble that is gluten and refined sugar-free. It makes a brilliant healthy and delicious pudding any time of the year.

closeup of frozen berry crumble in bowls

This healthier version of the traditional crumble is gluten and refined sugar-free, using sugar replacements, almond flour alongside the ultimate fibre champions, oats.

The use of frozen fruit in this crumble only adds to making it a quicker, easier and cheaper option. With a little extra preparation and prebaking delivers a fantastic dessert that can be in the oven in under 30 minutes.

The additional step of pre-baking the oaty topping for 15 minutes gives this crumble an extra deliciously crumbly topping. You can also add some extra flaked almonds on top which adds extra crunch to the nutty crumble topping

frozen berry crumble in black serving dish with flaked almonds on top

This quick and easy frozen fruit crumble also uses lemon instead of some of the more traditional spiced flavourings you may find in a crumble. This gives the stewed fruit a lovely tangy flavour which I think pairs beautifully with the sweet buttery crumble topping. It offers a refreshing change as well as making it a perfect pud to serve all year round!.

It is wonderful served with custard or cream. But if you are like me a big dollop of vanilla ice cream is the only way to enjoy a crumble.

Note on sweeteners

In this recipe, I use a white sweetener which could be either xylitol or erythritol. Both are a 1:1 substitute for sugar and work brilliantly in cakes and desserts

My preference is xylitol and my current favourites are NKD Living Natural Xylitol or Total Sweet Xylitol (affiliate links)

If you prefer to use different sweeteners like sucralose or stevia, remember to convert your quantity. Most brands have this information on their websites.

Don’t be afraid to experiment with different sweeteners and the quantities in sweet recipes. It may take a few attempts to find your preference as we all have a different palate.

Right back to the quick and easy frozen fruit crumble …..

Top Tip:

The higher water content created from freezing the fruit makes a little extra juice. If you use a slotted spoon to get the fruit into your serving dish when assembling you can always leave the juice to bubble away. This will reduce and make a lovely fruity sauce for serving

four bowls of frozen berry crumble with a jug of berry sauce

Frozen fruit options for this dessert:

  • Blackberry
  • Cherries – for a wonderful bakewell tart flavoured pud
  • Raspberry
  • Blueberry
  • Strawberry
  • Mixed Berries
  • Mango
  • Black Forest Fruits
  • or any combination of the above. Experiment and create the falvour combinations you enjoy.

However, if you prefer a more traditional apple crumble recipe then why not try the apple crumble with oats recipe. Which is also gluten and refined-sugar free.

apple crumble with oats served in bowls and a jug of custard

What you will need to make this quick and easy frozen fruit crumble :

For the oaty crumble topping

  • Gluten-free oats
    • Oats are naturally gluten-free however its in the processing of them that contamination with other cereals may occur.
    • Therefore I use GF as my husband has an intolerance however any type of porridge oats can be used.
    • Oats are such a magnificent superfood; they are wholegrain, a great carbohydrate source, full of fibre, essential vitamins, minerals and antioxidants.
  • Ground almonds
    • These are not only gluten-free but add an extra nutty flavour and are a great no carb-count option for baking
    • High in healthy monounsaturated fats, fiber and protein
  • Chopped almonds
    • High in healthy monounsaturated fats, fiber and protein.
    • Loaded with antioxidants
  • Sugar Repalcement
    • I used Xylitol but you could also use erythritol, stevia or sucralose.
    • My favourite Xylitol product is NKD Living Natural Xylitiol (affiliate link)
    • However see notes above on sweeteners if using another type
  • Butter
    • High in saturated fat
    • You could also use coconut oil if you prefer

For the stewed frozen fruit:

  • Frozen fruit
    • Freezing can help to retain the nutrient content of the fruits
    • Full of vitamins, minerals and antioxidants.
  • Sugar Repalcement
    • I used Xylitol but you could also use erythritol, stevia or sucralose.
    • However see notes above on sweeteners if using another type.
  • Lemon
    • Adds a wonderful zesty zing to the dish
    • Gives an extra dose of vitamin C

Diabetes note

This quick and easy frozen fruit crumble is nutrient-rich, high in fibre and protein. By switching out the traditional wheat flour in the crumble topping makes this dessert kinder on the blood sugar levels, hopefully helping to avoid bigger blood glucose spikes.

Carb Counting

The overall carb count for a serving of this frozen fruit crumble based on the ingredients we would count is:

Oats = 150g – 106.1g of carbs

Frozen fruit – blueberries = 400g – 36.4g of carbs

Frozen fruit – Strawberries = 500g – 30.5g of carbs

Now add all the carbs together – 106.1+36.4 + 30.5 = 173g

Finally divide this by the serving size, 6 – 173/6 = 28.8 g of carb per serving

Please note these are pretty generous serving sizes and that the total carbs of frozen fruit will vary depending on what you choose to use.

Quick and Easy Frozen Fruit Crumble

Quick and Easy Frozen Fruit Crumble

A quick and easy frozen fruit crumble that makes a brilliant healthy and delicious pudding anytime of the year

0 from 0 votes
Course: DessertDifficulty: Easy
Servings

6

servings
Prep time

30

minutes
Cooking time

30

minutes
Total time

1

hour 

Ingredients for the Stewed Frozen Fruit

  • 1000 g frozen fruit

  • 3 tbsp sugar replacement, xylitol

  • 1 lemon, juice and zest

  • Ingredients for the Crumble Topping
  • 150 g oats

  • 200 g ground almonds

  • 50 g sugar replacement, xylitol

  • 100 g butter

  • 100 g chopped almonds

Directions for the stewed frozen fruit

  • Place the frozen fruit into a pan on a low heat with the sugar replacement, along with the lemon juice and zest. stir to combine.
  • Leave to simmer gently for around 20 minutes, stirring occasionally.
  • While the fruit is stewing make the crumble topping.
  • Directions for the crumble topping
  • Preheat the oven to 180 C fan / 200 C
  • In a bowl mix the oats, ground almonds, sugar replacement and butter with your hands until you have a breadcrumb-like texture.
  • Add the chopped almonds and mix in well.
  • Place the crumbs onto a baking sheet and pre-bake in the oven for 15 mins turning them halfway through.
  • Directions for the frozen fruit crumble
  • Preheat the oven, 160 C fan / 180 C
  • In an ovenproof dish (25×25) assemble the frozen fruit crumble.
    Add your layer of fruit. However, if there is too much juice from the fruit, use a slotted spoon to transfer into your ovenproof dish.
  • Add the crumble on top
  • Cook in your preheated oven for 30 minutes

Tips and Notes

  • Diabetes Note – This quick and easy frozen fruit crumble is nutrient-rich, high in fibre and protein. By switching out the traditional wheat flour in the crumble topping makes this dessert kinder on the blood sugar levels, hopefully helping to avoid bigger blood glucose spikes.
  • Carb Counting – The overall carb count for a serving of this frozen fruit crumble based on the ingredients we would count is 28.8g of carbs per serving. This will vary depending on the fruit you choose to use.
  • If you are making in advance, you can leave the assembled crumble overnight in the fridge. Just increase the cooking time by 15-20 minutes to ensure it’s warmed through.
  • Extra fruit juice – The higher water content created from freezing the fruit makes a little extra juice. Leave the juice to bubble away on the hob. This will reduce and make a lovely fruity sauce for serving

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