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Blackberry & Toasted Marshmallow Milkshake

Adelaide
This blackberry and toasted marshmallow milkshake is rich, creamy, and slightly tangy with deep berry flavor balanced by sweet toasted marshmallow. It features a vibrant blackberry syrup swirl, a smooth vanilla-berry shake base, and a fluffy toasted marshmallow topping for a dramatic finish.
Prep Time 15 minutes
Cook Time 8 minutes
Total Time 23 minutes
Course Dessert, Drink
Cuisine American
Servings 2 large shakes
Calories 620 kcal

Equipment

  • small saucepan
  • blender
  • tall serving glasses
  • fine sieve (optional) For smooth syrup
  • kitchen torch For toasting marshmallows

Ingredients
  

  • 1 1/2 cups fresh or frozen blackberries (200g)
  • 3 tbsp sugar
  • 1 tbsp lemon juice
  • 2 tbsp water
  • 2 cups vanilla ice cream
  • 3/4 cup cold whole milk
  • 1/2 cup blackberry syrup (prepared above)
  • 1/2 tsp vanilla extract
  • whipped cream or marshmallow fluff (for topping)
  • 4–6 large marshmallows
  • fresh blackberries (for garnish)

Instructions
 

  • In a saucepan over medium heat, combine blackberries, sugar, lemon juice, and water. Cook for 6–8 minutes until berries break down and the mixture thickens slightly. Strain through a fine sieve for a smooth syrup if desired, then allow to cool completely.
  • Spoon several tablespoons of blackberry syrup inside each serving glass. Tilt and rotate the glass to create dramatic streaks along the sides. Place the glasses in the freezer for 5–10 minutes to set the swirl.
  • In a blender, combine vanilla ice cream, cold whole milk, 1/2 cup blackberry syrup, and vanilla extract. Blend until thick and smooth. Adjust consistency by adding more milk for a thinner shake or more ice cream for a thicker texture.
  • Pour the milkshake into the prepared glasses with the set blackberry swirl.
  • Top with whipped cream or marshmallow fluff. Place marshmallows on top and carefully toast with a kitchen torch until golden brown. Garnish with fresh blackberries and serve immediately.

Notes

For deeper flavor, add a pinch of salt to the syrup. Freeze glasses beforehand to keep the shake colder longer. If you do not have a torch, toast marshmallows briefly under a broiler. For a darker color, blend in a few whole blackberries directly into the shake. Best served immediately. Blackberry syrup can be refrigerated in an airtight container for up to 5 days.
Keyword berry dessert drink, blackberry milkshake, gourmet milkshake, toasted marshmallow shake