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5.0 from 33 votes

Banoffee Blondie Bar

A twist on the classic banoffee pie. Banana blondie bars with white chocolate and a lotus biscoff biscuit base, topped with dulce de leche and banana chips.

Prep Time
30 mins
Cook Time
30 mins
Additional Time
30 mins
Servings: 16 slices
Calories: 354 kcal
Course: Dessert
Cuisine: American , British

Ingredients

Biscoff Base
  • ¼ cup unsalted butter melted
  • 1¼ cup crushed biscuits such as Lotus Biscoff or graham crackers
Banana Blondie
  • ⅔ cup unsalted butter melted
  • ½ cup Light Brown Muscovado Sugar firmly packed
  • ½ cup superfine granulated sugar or caster sugar
  • 1 egg
  • 1 teaspoon vanilla extract
  • 1½ cup all purpose flour or plain flour
  • ½ tablespoon cornstarch or cornflour in the UK
  • ¼ teaspoon baking powder
  • ¾ teaspoon salt
  • 1 medium ripe banana mashed with a fork
  • ½ cup white chocolate chopped into chunks
Topping
  • 1 can dulce de Leche or caramel topping
  • 16 banana chips

Instructions

    Cup of Yum
  1. Preheat the oven to 350°F (175C/160C Fan) and line a 8" square baking pan with parchment paper.
  2. In a medium bowl, mix together the ingredients for the base (melted butter and crushed biscuits). Once combined, sprinkle into the prepared baking tin and press firmly with knuckles or the back of a spoon, until evenly and well packed.
  3. In a small bowl, stir together your flour, cornstarch, baking powder and salt. Set aside.
  4. In a large bowl, beat together your ⅔ cup butter and sugars until light and fluffy. Add your egg and vanilla, beating to combine.
  5. Add your flour mixture in two or three additions, stirring well after each. Then add your mashed banana and chopped chocolate, fold to incorporate.
  6. Pour the batter into your prepared tin and bake for about 45 minutes, checking until a toothpick inserted in the centre comes out mostly clean. Once baked, remove from the oven and allow to cool in the tin for about 20 minutes.
  7. Pour one can (about 1 cup or so) of dulce de leche onto the top and spread over. Place a banana chip in the centre of each expected slice - I like to cut mine into 16 even pieces, but you could do 12 if you prefer more generous portions. Using the lining to help you remove the blondie bars from the pan, pull these out before cutting as this will make the slicing in the grid easier.

Nutrition Information

Calories 354kcal (18%) Carbohydrates 49.2g (16%) Protein 4g (8%) Fat 16.3g (25%) Saturated Fat 9.5g (48%) Cholesterol 47mg (16%) Sodium 351mg (15%) Potassium 85mg (2%) Fiber 1.6g (6%) Sugar 26g (52%) Calcium 75mg (8%) Iron 1mg (6%)

Nutrition Facts

Serving: 16slices

Amount Per Serving

Calories 354

% Daily Value*

Calories 354kcal 18%
Carbohydrates 49.2g 16%
Protein 4g 8%
Fat 16.3g 25%
Saturated Fat 9.5g 48%
Cholesterol 47mg 16%
Sodium 351mg 15%
Potassium 85mg 2%
Fiber 1.6g 6%
Sugar 26g 52%
Calcium 75mg 8%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.