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Homemade Apple Crumble Slice filled with sweet apple slices and topped with an oat streusel crumble. Serve it cold or warm it up for a decadent dessert!

Apple Crumble Slice

Homemade Apple Crumble Slice filled with sweet apple slices and topped with an oat streusel crumble. Serve it cold or warm it up for a decadent dessert!
5 from 3 votes
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Course: Dessert
Cuisine: Slices
Keyword: apple crumble slice
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 16 pieces
Calories: 303kcal

Equipment

  • Thermomix (optional)
  • Oven

Ingredients

For the base and crumble:

  • 1 ¼ cups (155g) plain flour
  • 1 ¼ cups (110g) rolled oats
  • ½ tsp salt
  • ½ tsp bi-carbonate soda
  • ½ cup (100g) raw sugar
  • ½ cup (80g) brown sugar packed
  • ¾ cup (170g) unsalted butter melted
  • 1 tsp vanilla extract

For the apple filling:

  • 3 apples peeled and sliced thinly
  • 2 tbs plain flour
  • 2 tbs raw sugar
  • 1 tsp ground cinnamon
  • ¼ tsp nutmeg

Instructions

Conventional Method

  • Preheat oven to 170 degrees celsius (160 degrees if fan forced).
  • Grease and line a 17X28cm slice tray with baking paper, allowing the edges to overhang.
  • In a large bowl, whisk together the plain flour, rolled oats, salt, bi-carb soda, raw sugar and brown sugar.
  • Add the melted butter and vanilla extract and stir mixture until well combined.
  • Spoon half of the crumble mixture into the bottom of the prepared tin and press very firmly into an even layer. Bake in preheated oven for 15 minutes.
  • Remove from oven and set aside (leave the oven turned on).
  • To make the apple filling, place the sliced apples into a mixing bowl. Add the plain flour, raw sugar, cinnamon and nutmeg and mix until the apples are well coated.
  • Spread the apple slices in an even layer over the top of the cooked base.
  • Sprinkle the remaining crumble mixture over the top of the apple and press down lightly.
  • Bake in oven for 25 minutes or until lightly golden.
  • Remove from oven and allow to cool.
  • Cover and refrigerate for at least 2 hours (preferably overnight) then take it out and cut into squares.
  • Store in airtight container in refrigerator for up to 4 days.

Thermomix Method

  • Preheat oven to 170 degrees celsius (160 degrees if fan forced). Grease and line a 17X28cm slice tray with baking paper, allowing the edges to overhang.
  • Melt the butter and vanilla in the Thermomix bowl for 3 minutes, Speed 2, 50 degrees.
  • Add the plain flour, rolled oats, salt, bi-carb soda, brown sugar and raw sugar. Mix for 20 seconds on Reverse, Speed 2. Scrape down the sides. Mix for a further 20 seconds on Reverse, Speed 2.
  • Spoon half of the crumble mixture into the bottom of the prepared tin and press very firmly into an even layer. Bake in preheated oven for 15 minutes.
  • Remove from oven and set aside (leave the oven turned on).
  • To make the apple filling, place the sliced apples into the Thermomix bowl. Add the plain flour, raw sugar, cinnamon and nutmeg and mix on Reverse, Speed 2 until coated (use the spatula to help mix). 
  • Spread the apple slices in an even layer over the top of the cooked base. 
  • Sprinkle the remaining crumble mixture over the top of the apple and press down lightly. 
  • Bake in oven for 25 minutes or until lightly golden.
  • Remove from oven and allow to cool.
  • Cover and refrigerate for at least 2 hours (preferably overnight) then take it out and cut into squares.
  • Store in airtight container in refrigerator for up to 4 days or freeze for up to 3 months.

Video

Notes

RECIPE NOTES
Crumble - the crumble for the base and the topping is made from the same recipe. Simply divide the mixture and press half firmly into the tin for the base, while reserving the other half to crumble over the top.
Apple mixture - adding flour to the sliced apples helps to soak up the liquid when the apples bake and develops the filling into a beautiful soft and sweet apple layer. 
Types of apples - You can use any type of apple you like for this recipe, including granny smith apples, pink lady, jazz apples, red apples.
Serving the slice - Serve the apple crumble slice cold or warm it up and serve with custard, cream or ice-cream. 
Storing the slice - Store in airtight container in refrigerator for up to 4 days or freeze for up to 3 months. 

Nutrition

Calories: 303kcal | Carbohydrates: 48g | Protein: 5g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 24mg | Sodium: 117mg | Potassium: 136mg | Fiber: 3g | Sugar: 20g | Vitamin A: 295IU | Vitamin C: 1.6mg | Calcium: 26mg | Iron: 1.8mg