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Best Twix Blondies Recipe: Gooey Chocolate Dessert Bars

A fudgy, chewy dessert bar recipe packed with Twix chunks, milk and white chocolate chips, and an optional caramel drizzle for the ultimate indulgence.
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 4 hours 30 minutes
Servings: 16 blondies
Course: Dessert
Cuisine: American
Calories: 296
Ingredients Method Notes

Ingredients
  

  • 120 g butter melted and cooled
  • 130 g caster sugar
  • 130 g soft light brown sugar
  • 3 medium eggs
  • 1 teaspoon vanilla extract
  • 200 g plain flour
  • 160 g Twix bars about 4 snack-size, chopped
  • 75 g milk chocolate chips
  • 75 g white chocolate chips
  • 2-3 tablespoons Carnation caramel optional topping

Method
 

  1. Preheat oven to 160℃ (140℃ fan). Line an 8x8-inch baking tin with parchment paper.
  2. Whisk melted butter with both sugars until glossy and combined.
  3. Add eggs one at a time, mixing well, then stir in vanilla extract.
  4. Fold in flour gently until just combined.
  5. Chop Twix bars and fold into batter with both chocolate chips.
  6. Spread batter evenly in prepared tin. Bake 35–40 minutes until edges are golden and center has a slight wobble.
  7. Cool completely, then refrigerate for 3–4 hours to set fudgy texture.
  8. Drizzle with caramel (optional), cut into 16 squares, and serve.

Notes

Do not overbake – blondies should remain slightly soft in the center. Chill for at least 3 hours before cutting for clean squares. Store refrigerated for up to 1 week or freeze for 3 months.