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Ocean Aesthetic Birthday Cake

Ocean Aesthetic Birthday Cake
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An enchanting Ocean Aesthetic Birthday Cake featuring moist vanilla cake layers, swirled blue buttercream frosting, and delightful ocean-themed decorations. This showstopper is perfect for birthdays, baby showers, or any celebration, bringing the magic of the sea to your special occasion with its stunning appearance and delicious flavor.

Ingredients

Scale

2 1/2 cups all-purpose flour
1 1/2 cups granulated sugar
1 tbsp baking powder
1/2 tsp salt
3/4 cup unsalted butter, softened
3 large eggs, at room temperature
1 cup whole milk, at room temperature
2 tsp pure vanilla extract
1 cup unsalted butter, softened
4–5 cups powdered sugar, sifted
1/4 cup whole milk or heavy cream
1 tsp pure vanilla extract
Pinch of salt
Blue gel food coloring
Ocean-themed sprinkles (optional)
Edible glitter or luster dust (silver/blue)
White chocolate (for shells/coral, optional)
Graham crackers or Nilla wafers, crushed (for “sand”)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour three 8-inch round cake pans. Line the bottoms with parchment paper for easy removal
  2. In a large bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt. Make sure everything is well combined
  3. In a separate large bowl, using an electric mixer, beat the softened butter on medium speed until creamy, about 2 minutes. Gradually add the granulated sugar, continuing to beat until the mixture is light and fluffy, about 3-5 minutes. Scrape down the sides of the bowl as needed
  4. Add the large eggs one at a time, beating well after each addition. Ensure each egg is fully incorporated before adding the next
  5. With the mixer on low speed, gradually add about one-third of the dry ingredient mixture to the butter mixture, mixing until just combined. Then, pour in half of the milk and mix until just incorporated. Repeat this process, adding another third of the dry ingredients, then the remaining milk, and finally the last of the dry ingredients. Mix until just combined, being careful not to overmix. Stir in the vanilla extract
  6. Divide the batter evenly among the prepared cake pans. Smooth the tops with a spatula. Bake for 25-30 minutes, or until a wooden skewer inserted into the center comes out clea
  7. Once baked, remove the cakes from the oven and let them cool in their pans on a wire rack for about 10-15 minutes. Then, invert the cakes onto the wire rack, remove the parchment paper, and let them cool completely before frosting
  8. While the cakes cool, prepare your frosting. In a large bowl, using an electric mixer, beat the softened butter on medium speed until light and fluffy, about 3-5 minutes. Gradually add the sifted powdered sugar, one cup at a time, beating well after each addition. Add the milk or heavy cream, vanilla extract, and a pinch of salt. Beat on medium-high speed for another 3-5 minutes until the frosting is light, fluffy, and smooth. Adjust consistency with more milk or powdered sugar if needed
  9. Divide the buttercream into several bowls. Leave one portion white. In the remaining bowls, add varying amounts of blue gel food coloring to create different shades of blue (light blue, medium blue, dark blue). Stir well until the colors are uniform
  10. Once the cake layers are completely cool, use a serrated knife to level the tops of the cakes if they have domed. Place one cake layer on your serving plate or cake stand. Spread a thin layer of white or light blue frosting over the top. Add the second cake layer, spreading another thin layer of frosting. Repeat with the third layer. Apply a very thin layer of frosting all over the entire cake – this is your "crumb coat." Chill the cake in the refrigerator for 20-30 minutes to set the crumb coat
  11. Once the crumb coat is firm, apply your final layers of frosting. Using an offset spatula, begin applying dollops of your different shades of blue frosting and white frosting randomly around the cake. Start with the lightest shades at the top and gradually blend into darker shades towards the bottom for an ombre effect, or simply apply them in a swirling pattern. Use a clean offset spatula or bench scraper to gently smooth and blend the colors around the sides of the cake, creating a wave-like or blended ocean appearance. You can create textured "waves" by gently pressing the tip of your spatula into the frosting and pulling it away
  12. Sprinkle crushed graham crackers or Nilla wafers around the base of the cake to create "sand." If using white chocolate shells or coral, gently place them on the cake. Sprinkle ocean-themed sprinkles and edible glitter over the blue frosting for a shimmering water effect

Notes

Ensure all cold ingredients, especially butter and eggs, are at room temperature before baking for a smoother batter and fluffier buttercream.

Do not overmix your cake batter; mix only until just combined to prevent a dense, tough cake.

Leveling your cake layers after cooling with a serrated knife is crucial for a professional, even stack.

Apply a thin "crumb coat" of frosting and chill the cake for 20-30 minutes to trap loose crumbs before the final frosting layers.

Use gel food coloring for vibrant, deep blue shades without thinning your frosting.

Experiment with different shades of blue and white, swirling them directly on the cake to create organic, natural-looking waves.

Store the cake at room temperature (below 70°F/21°C) for up to 1 day, or refrigerated in an airtight carrier for up to 5 days.

Bring refrigerated cake to room temperature for 30-60 minutes before serving to soften frosting and enhance tenderness.

Cake layers can be frozen (tightly wrapped) for 2-3 months; a fully decorated cake can be frozen for up to 1 month after firming frosting.

Nutrition

Find it online: https://fabiloustaste.com/ocean-aesthetic-birthday-cake/