I still remember the first time I spooned a swirl of bright, blushing buttercream across a warm cupcake — the raspberries smelled like summer rain, and the kitchen felt suddenly cinematic. This Raspberry Buttercream turns a simple moment into something you pause for. It’s silky, tart, and utterly crushable.
Why make this recipe
Because it captures fresh raspberry brightness in a luxuriously smooth frosting that elevates cakes, cupcakes, and cookies — all without complicated techniques. It’s show-stopping, forgiving, and rooted in flavors that feel seasonal and sophisticated.
How to make Raspberry Buttercream
Think of this as two acts. First, coax the pure raspberry flavor into a concentrated sauce. Then, transform butter and sweetened condensed milk into a glossy, spreadable buttercream that carries that sauce like a perfume. The sauce keeps the frosting vivid without watering it down, and the condensed milk gives a silky body that feels decadently modern.
Ingredients:
- 250 g raspberries (frozen, thawed)
- 75 g sugar
- 1 tbsp water
- 1 tsp lemon juice
- ½ cup raspberry sauce (more for a stronger flavor)
- 500 g butter (unsalted and softened)
- 395 g sweetened condensed milk
- pink food color (or red)
Directions:
Raspberry Sauce
- In a small saucepan, combine the thawed raspberries, 75 g sugar, and 1 tbsp water over medium heat.
- Stir gently as the berries soften and release juice, about 5–7 minutes.
- Add 1 tsp lemon juice, simmer for another 2 minutes to brighten the flavor.
- Remove from heat and press the mixture through a fine-mesh sieve into a bowl, discarding seeds. Let cool completely.
- Measure out ½ cup of the strained raspberry sauce for the buttercream. Reserve any extra for drizzling or a more intense flavor.
Raspberry Buttercream
- In the bowl of a stand mixer fitted with the paddle attachment (or using a hand mixer), beat 500 g softened unsalted butter on medium speed until pale and fluffy, about 3–5 minutes.
- With the mixer on low, slowly pour in the 395 g sweetened condensed milk in a steady stream, then increase speed to medium-high and beat until fully incorporated and glossy, 2–3 minutes.
- Add the ½ cup cooled raspberry sauce and beat on medium until the color and flavor are even, about 1–2 minutes.
- If desired, add a drop or two of pink or red food color until you reach your preferred shade; mix briefly to combine.
- Taste and adjust: if you want a stronger raspberry note, fold in a tablespoon more of the reserved sauce (but be careful — too much liquid can soften the buttercream).
- Use immediately to frost, or chill slightly to firm before piping.
How to serve Raspberry Buttercream
This buttercream is luminous on vanilla, chocolate, or almond cakes; it pipes beautifully into rosettes on cupcakes and makes an elegant filling for sandwich cookies. For a layered cake, spread a thin crumb coat, chill, then pipe generous swirls across the top and sides. A small spoonful of extra raspberry sauce drizzled over finished cupcakes gives a glossy, professional touch.
How to store Raspberry Buttercream
Room temperature: If your kitchen is cool (under 70°F / 21°C), you can keep covered buttercream at room temperature for up to 24 hours.
Refrigerator: Store in an airtight container for up to 5 days. Before using, bring to room temperature and re-whip briefly to restore texture.
Freezer: Freeze in an airtight container for up to 1 month. Thaw in fridge overnight, then bring to room temperature and whip before using.
Tips to make Raspberry Buttercream
- Use thawed frozen raspberries for consistent flavor year-round; they’re picked and frozen at peak ripeness.
- Strain the sauce well to remove seeds for silky texture.
- Keep butter at room temperature but not melted — it should still feel cool to the touch for best structure.
- If your buttercream becomes too soft after adding sauce, chill for 10–15 minutes and re-whip.
- If you prefer less sweetness, reduce the added sugar in the sauce by 10–20 g and compensate with a touch more lemon juice for brightness.
Variations (if any)
- Mixed Berry: Swap half the raspberries for strawberries or blackberries for a layered berry flavor.
- Raspberry-Lemon: Add 1 tsp finely grated lemon zest to the buttercream for a citrus lift.
- Dark Chocolate Swirl: Fold in 2–3 tbsp melted, cooled dark chocolate for a bittersweet contrast.
- Vegan: Use vegan butter and a plant-based sweetened condensed milk alternative; texture will vary slightly.
FAQs
Q: Can I use fresh raspberries instead of frozen?
A: Yes — fresh raspberries work beautifully if they’re ripe. If they’re watery, reduce the added water to avoid diluting the sauce.
Q: Will the buttercream hold up in warm weather?
A: This recipe is rich and stable but can soften above 75°F (24°C). Keep finished desserts chilled and only bring to room temperature just before serving.
Q: Can I make this ahead for a party?
A: Absolutely. Make the buttercream and keep it refrigerated up to 5 days. Re-whip before using. For decorations, you can also freeze piped shapes on a baking sheet and transfer to a container.
Q: Is sweetened condensed milk safe to use in frosting without cooking?
A: Yes — commercially canned sweetened condensed milk is shelf-stable and safe to use directly; it adds thickness and sweetness without needing additional powdered sugar.
Q: How do I prevent my buttercream from becoming grainy?
A: Ensure the raspberry sauce is smooth and well-strained; also beat the butter fully before adding the condensed milk so the mixture emulsifies properly.
Conclusion
If you want another riff on raspberry buttercream with slightly different technique and notes, this Raspberry Buttercream Frosting Recipe – Preppy Kitchen offers useful tips on balancing textures. For a fresh take focused on bright, natural raspberry flavor, see this Fresh Raspberry Buttercream Recipe – Sugar & Sparrow.
Whip up a batch, let the color make you smile, and share one with someone who loves the taste of summer — it’s the kind of small, delicious memory worth making.
Raspberry Buttercream
Ingredients
Method
- In a small saucepan, combine the thawed raspberries, 75 g sugar, and 1 tbsp water over medium heat.
- Stir gently as the berries soften and release juice, about 5–7 minutes.
- Add 1 tsp lemon juice, simmer for another 2 minutes to brighten the flavor.
- Remove from heat and press the mixture through a fine-mesh sieve into a bowl, discarding seeds. Let cool completely.
- Measure out ½ cup of the strained raspberry sauce for the buttercream. Reserve any extra for drizzling or a more intense flavor.
- In the bowl of a stand mixer fitted with the paddle attachment (or using a hand mixer), beat 500 g softened unsalted butter on medium speed until pale and fluffy, about 3–5 minutes.
- With the mixer on low, slowly pour in the 395 g sweetened condensed milk in a steady stream, then increase speed to medium-high and beat until fully incorporated and glossy, 2–3 minutes.
- Add the ½ cup cooled raspberry sauce and beat on medium until the color and flavor are even, about 1–2 minutes.
- If desired, add a drop or two of pink or red food color until you reach your preferred shade; mix briefly to combine.
- Taste and adjust: if you want a stronger raspberry note, fold in a tablespoon more of the reserved sauce (but be careful — too much liquid can soften the buttercream).
- Use immediately to frost, or chill slightly to firm before piping.