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Raspberry Marshmallow Hearts Recipe

4.6 from 136 reviews

Raspberry Marshmallow Hearts are a delightful homemade treat featuring a smooth, fruity raspberry puree blended into fluffy marshmallows. These sweet, colorful confections are lightly dusted with powdered sugar and cut into charming heart shapes, perfect for gifting or special occasions.

Ingredients

Scale

Fruit Purée

  • 1 cup fresh raspberries

Sugar Syrup

  • 1 cup granulated sugar
  • 1/2 cup light corn syrup
  • 1/4 cup water

Marshmallow Base

  • 2 large egg whites
  • 1 tablespoon gelatin powder
  • 1 teaspoon vanilla extract
  • Pinch of salt

Finishing

  • Powdered sugar (for dusting)

Instructions

  1. Prepare raspberry purée: Wash the fresh raspberries thoroughly. Purée them in a blender or food processor until smooth, then strain the mixture with a fine mesh sieve to remove seeds, creating a smooth raspberry purée.
  2. Make syrup: In a medium-sized pot, combine granulated sugar, light corn syrup, and water. Heat over medium heat, stirring occasionally until the sugar dissolves. Continue heating until the syrup reaches 240°F (115°C) on a candy thermometer, indicating the soft-ball stage.
  3. Bloom gelatin: Place the gelatin powder into a small bowl with some cold water and allow it to bloom for about 5 minutes, until it softens and swells.
  4. Combine gelatin and syrup: Stir the bloomed gelatin into the hot sugar syrup until fully dissolved. Then add the raspberry purée, vanilla extract, and a pinch of salt into the mixture, stirring to combine evenly.
  5. Whip egg whites: Using an electric mixer, beat the egg whites until stiff peaks form. This will incorporate air and provide a fluffy texture to the marshmallows.
  6. Mix raspberry syrup with egg whites: Gradually add the warm raspberry-gelatin mixture to the whipped egg whites while continuously whisking. Continue beating the mixture until it becomes thick, glossy, and holds its shape.
  7. Set marshmallow: Grease an 8-inch square pan with a thin layer of oil or non-stick spray. Pour the marshmallow mixture evenly into the pan and smooth the top with a spatula. Let it set uncovered at room temperature for at least 4 hours to firm up.
  8. Finish and shape: Once set, dust the surface generously with powdered sugar to prevent sticking. Carefully invert the marshmallow slab onto a cutting board, peel off any lining, and use a heart-shaped cookie cutter to cut the marshmallows into heart shapes. Dust edges with more powdered sugar if needed.

Notes

  • For seed-free purée, ensure thorough straining. If desired, strain twice.
  • Make sure the syrup reaches 240°F to set marshmallows properly.
  • Blooming gelatin is crucial for proper texture and stability.
  • Use pasteurized or fresh eggs with caution if serving to vulnerable groups.
  • Store marshmallow hearts in an airtight container at room temperature for up to one week.

Keywords: raspberry marshmallows, marshmallow hearts, homemade marshmallows, raspberry treats, Valentine’s Day dessert