Birthday Cake Macarons Recipe
Introduction
These Birthday Cake Macarons are a delightful twist on a classic French treat, filled with a creamy birthday cake-flavored buttercream. Perfect for celebrations or treating yourself, they combine delicate almond shells with a rich, colorful filling topped with festive rainbow sprinkles.

Ingredients
- 105 g sifted super fine almond flour
- 105 g sifted confectioners sugar
- 100 g egg whites
- 100 g white sugar
- 3 g (1 tsp) egg white powder (meringue powder, optional but recommended)
- 1 tsp artificial vanilla
- Nonpareils rainbow sprinkles
- 1 cup (130 g) white or yellow boxed cake mix
- 1 cup (227 g) unsalted butter, at room temperature
- 3 cups (360 g) confectioners sugar
- 2 tbsp (28 g) heavy cream
- 1 tsp artificial vanilla
- Pink food colouring
Instructions
- Step 1: Prepare a baking sheet with parchment paper or a silicone mat. If possible, prepare two sheets for easier baking.
- Step 2: Sift the almond flour over a large mixing bowl placed on a scale until you reach 105 g, discarding any large pieces. Repeat with the confectioners sugar. Whisk both together thoroughly and set aside.
- Step 3: For the meringue, add egg whites, white sugar, and egg white powder into a stand mixer bowl. Place this bowl over a pot of simmering water (bain-marie), ensuring the bowl doesn’t touch the water. Whisk continuously until the mixture reaches 140°F (60°C).
- Step 4: Remove the bowl from heat and place it on the stand mixer fitted with the whip attachment. Beat starting on low until soft peaks form, then increase speed to medium until medium peaks, and finally high until stiff peaks appear. Add vanilla and mix gently.
- Step 5: Sift the dry almond flour and sugar mixture into the meringue using a sieve. Fold gently using a scraping and cutting motion (like the Greek letter phi Φ), taking care not to deflate the meringue too much.
- Step 6: The batter is ready to pipe when it ribbons off your spatula and can form figure 8 shapes without breaking. If it falls in chunks, fold a little more.
- Step 7: Transfer the batter into a piping bag fitted with a medium round tip. Pipe small 1½ inch circles onto the prepared baking sheets, holding the bag perpendicular. Tap the sheets against the counter to release air bubbles, and pop any remaining bubbles gently with a toothpick. Sprinkle with rainbow nonpareils.
- Step 8: Preheat oven to 300°F (275°F for convection). Let the macarons sit at room temperature to form a skin, about 8 minutes to 1 hour. They’re ready to bake when lightly touching them leaves no batter on your finger.
- Step 9: Bake for 15–20 minutes, depending on size. The macarons are done when the tops are firm and do not wobble on their bases.
- Step 10: Cool completely before removing from the mats or parchment. Match similar-sized macaron halves into pairs for filling.
- Step 11: For the birthday cake buttercream, microwave the boxed cake mix in a bowl for about 1½ minutes, stirring every 30 seconds, until it reaches 170°F. Let cool for 10 minutes.
- Step 12: Beat butter in a stand mixer with a whip attachment until light and fluffy (about 3 minutes). Gradually add the cooled cake mix and confectioners sugar until smooth.
- Step 13: Add heavy cream, vanilla, and pink food colouring, mixing well. Transfer to a piping bag fitted with a star tip.
- Step 14: Pipe buttercream onto half of the macaron shells, then sandwich with corresponding tops. Refrigerate overnight to let flavors meld and texture mature.
Tips & Variations
- Sift almond flour and sugar multiple times to avoid lumps and get smooth shells.
- If you don’t have egg white powder, ensure your egg whites are fresh and free from any yolk contamination for best meringue results.
- Use a macaron mat or stencil to pipe uniform-sized shells easily.
- Adjust the food colouring or add a few drops of other flavours like almond or lemon extract to customize your buttercream.
Storage
Store assembled macarons in an airtight container in the refrigerator for up to 3 days. Let them come to room temperature before serving to enjoy their best texture and flavor. Unfilled shells can be stored similarly for 3 days or frozen for up to 1 month.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh egg whites instead of egg white powder?
Yes, fresh egg whites work well, but egg white powder helps stabilize the meringue and improve consistency. If using fresh whites, ensure they are at room temperature and free of any yolk.
How do I know when my macaron batter is ready to pipe?
The batter should flow smoothly off your spatula in ribbons without breaking. A good test is the figure 8 test: if you can draw several figure 8 shapes with batter falling without any breaks, it’s ready.
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Birthday Cake Macarons Recipe
- Total Time: 12 hours (including drying and overnight chilling)
- Yield: Approximately 30–40 macarons (15–20 filled pairs) 1x
- Diet: Vegetarian
Description
Delight in these whimsical Birthday Cake Macarons featuring delicate almond meringue shells decorated with rainbow sprinkles and filled with a creamy, cake-flavored buttercream. Perfect for celebrations, these macarons balance a crisp exterior with a soft, chewy center and a nostalgic birthday cake taste.
Ingredients
Macaron Shells
- 105 g Sifted Super Fine Almond Flour
- 105 g Sifted Confectioners Sugar
- 100 g Egg Whites
- 100 g White Sugar
- 3 g (1 tsp) Egg White Powder (meringue powder, optional but recommended)
- 1 tsp Artificial Vanilla
- Nonpareils Rainbow Sprinkles
Birthday Cake Buttercream Filling
- 1 cup (130 g) White or Yellow Boxed Cake Mix
- 1 cup (227 g) Unsalted Butter, at room temperature
- 3 cups (360 g) Confectioners Sugar
- 2 tbsp (28 g) Heavy Cream
- 1 tsp Artificial Vanilla
- Pink Food Colouring
Instructions
- Dry Ingredients: Prepare a baking sheet lined with parchment or a silicone mat; prepare two if possible. Sift almond flour until you have 105 g, discarding large pieces. Repeat with confectioners sugar. Whisk almond flour and confectioners sugar together until well combined, then set aside.
- Making the Meringue: In the bowl of a stand mixer, combine egg whites, white sugar, and egg white powder. Place the bowl over a simmering pot of water (bain-marie), ensuring it does not touch the water. Continuously whisk until the mixture reaches 140°F (60°C). Remove from heat and fit the mixer with a whip attachment.
- Whip the Meringue: Beat on low until soft peaks form, increase to medium for medium peaks, then high speed until stiff peaks form. Add vanilla and beat until just combined.
- Macaronage: Place a sieve over the bowl and sift the dry mixture into the meringue. Fold gently, scraping the sides and cutting through the center in a circular motion like the Greek letter phi (Φ). Fold until the batter ribbons off the spatula continuously and passes the figure-8 test without breaking.
- Piping and Drying: Transfer batter to a piping bag with a medium round tip. Pipe small 1½ inch circles onto prepared baking sheets, holding the piping bag perpendicular. Tap the sheet to remove air bubbles; pop remaining bubbles with a toothpick. Sprinkle rainbow nonpareils over the macarons.
- Form the Skins: Preheat oven to 300°F (275°F convection). Let macarons sit until a skin forms (8 minutes to 1 hour). When lightly touched, the batter should not stick to your finger.
- Baking: Bake macarons for 15-20 minutes depending on size. Check at 15 minutes; macarons are done when tops are firm and do not move on the base.
- Cooling: Cool macarons completely before removing from sheets. Match shells into perfect pairs.
- Prepare Buttercream Filling: Microwave cake mix in a safe bowl for 1 minute 30 seconds, stirring every 30 seconds until it reaches 170°F. Cool for 10 minutes. In a stand mixer with whip attachment, beat butter for 3 minutes until light and fluffy. Gradually add cooled cake mix and confectioners sugar, beating until smooth.
- Finish Buttercream: Add heavy cream, vanilla, and pink food coloring; mix until combined. Transfer to a piping bag fitted with a star tip.
- Assemble Macarons: Pipe buttercream onto half of the macaron shells (bottom halves). Top with corresponding halves and refrigerate overnight to mature and meld flavors.
Notes
- Using egg white powder stabilizes the meringue but is optional.
- Ensure batter is not overmixed or undermixed to achieve perfect macaron feet.
- Formation of a dry skin before baking is crucial for classic macaron texture.
- Let macarons mature in the fridge overnight for improved texture and flavor melding.
- Use a silicone baking mat or parchment to prevent sticking and promote even baking.
- Adjust bake time based on macaron size; smaller macarons require less time.
- Prep Time: 40 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: French
Keywords: Birthday Cake Macarons, Almond Meringue, Buttercream Filling, Celebration Dessert, French Macarons, Rainbow Sprinkles, Cake Mix Buttercream

