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Slow cooker apple crumble with custard.
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5 from 10 votes

Easy Slow Cooker Apple Crumble

A delicious slow cooker apple crumble recipe made with tart Bramley apples and a sweet oat crumble topping. A warming comfort food dessert for chilly days!
Course Dessert
Cuisine British
Prep Time 10 minutes
Cook Time 3 hours 15 minutes
Total Time 3 hours 25 minutes
Servings 6
Calories 526kcal
Author Beth Sachs

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Equipment

Ingredients

Metric - US Customary
  • 1 tablespoon Butter for greasing
  • 6 Bramley Apples (roughly 1kg) peeled, cored and sliced
  • 50 g Caster Sugar
  • ½ teaspoon Cinnamon

For the crumble

  • 125 g Plain Flour
  • 125 g Porridge Oats not jumbo or quick cook oats
  • 125 g Light Brown Sugar
  • 125 g Unsalted Butter melted

Instructions

  • Place the flour, oats, and light brown sugar in a large bowl and pour over the melted butter. Mix until crumbles form.
    125 g Plain Flour, 125 g Porridge Oats, 125 g Light Brown Sugar, 125 g Unsalted Butter
  • Butter the slow cooker basin and place the thinly sliced apples, cinnamon, and caster sugar in it. Give it a good mix with a spoon.
    1 tablespoon Butter, 6 Bramley Apples, 50 g Caster Sugar, ½ teaspoon Cinnamon
  • Top the apples with the crumble topping and lightly press it down with the back of a spoon or your hand.
  • Put a tea towel under the lid then flip up the edges of the tea towel over the lid so they don't hang down over the slow cooker.
  • Slow cook on a high setting for 2.5 hours then remove the lid (and tea towel) and cook for a further 45 minutes to crisp up the crumble topping.

Notes

Tips:
  • As there is no pre-cooking of the apples in this recipe, be sure to slice the apples as thinly as you can, so they cook evenly and become soft and tender. 
  • Instead of buttering the slow cooker basin you could spray it with a light cooking oil to save calories.
 
Variations:
  • Add 1 peeled and sliced pear to the recipe for an apple and pear crumble or fresh berries such as raspberries or blueberries.
  • Add a handful of chopped walnuts or pecans to the crumble topping for added crunch and texture.
  • Add a handful of dried cranberries or raisins to the apple filling for an extra fruity taste.
  • Add half a teaspoon of ground ginger to the apple filling for warmth and spice.
 
Storage:
Store - Leftovers can be stored in an airtight container in the fridge for up to 3 days.
Reheat - Reheat in the microwave until hot. Crumble can also be eaten at room temperature.
Freeze - The slow cooker apple crumble can be frozen for up to 3 months.
 
Nutrition:
The nutritional information provided is approximate and is calculated using online tools. Information can vary depending on various factors, but we have endeavoured to be as accurate as possible.
 

Nutritional Information (Approximate)

Calories: 526kcal | Carbohydrates: 85g | Protein: 6g | Fat: 20g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 45mg | Sodium: 12mg | Potassium: 328mg | Fiber: 7g | Sugar: 48g | Vitamin A: 621IU | Vitamin C: 8mg | Calcium: 52mg | Iron: 2mg
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