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Ocean Themed Birthday Cake

Ocean Themed Birthday Cake
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This Ocean Themed Birthday Cake is a straightforward, mom-approved recipe for creating a moist, tender cake base with vibrant blue buttercream frosting and fun edible decorations. Perfect for beginner bakers, it allows for creative customization and brings smiles to any celebration, especially for kids.

Ingredients

Scale

2.5 cups all-purpose flour
1.5 cups granulated sugar
1 tablespoon baking powder
0.5 teaspoon salt
1 cup unsalted butter, softened
4 large eggs
1 cup whole milk
2 teaspoons vanilla extract
1 cup unsalted butter, softened
4.5 cups powdered sugar, sifted
1 teaspoon vanilla extract
3 tablespoons milk or heavy cream
Quantity Blue gel food coloring
1.5 cups graham cracker crumbs
Quantity Assorted blue, green, and white candies
Quantity Edible pearls or white nonpareils
Quantity White candy melts or pretzels

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour two 8-inch round cake pans or line them with parchment paper circles. This ensures your cake layers release beautifully
  2. In a large bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt. Make sure to combine them thoroughly; this prevents clumps in your finished cake
  3. In a separate large bowl, using an electric mixer, cream together the softened butter until light and fluffy. Gradually beat in the eggs, one at a time, incorporating each fully before adding the next. Scrape down the sides of the bowl as needed to ensure everything combines
  4. Gradually add the dry ingredients to the wet ingredients, alternating with the milk, beginning and ending with the dry ingredients. Mix on low speed until just combined. Be careful not to overmix the batter; overmixing can lead to a tough cake. Stir in the vanilla extract
  5. Divide the batter evenly between the two prepared cake pans. Smooth the tops with a spatula. Bake for 30-35 minutes, or until a wooden skewer inserted into the center of the cakes comes out clea
  6. Remove the cakes from the oven and let them cool in the pans for about 10-15 minutes. Then, carefully invert them onto a wire rack to cool completely. This step is crucial; frosting a warm cake will cause the frosting to melt and slide off
  7. While the cakes cool, prepare your frosting. In a large bowl, cream the softened butter with an electric mixer until light and fluffy. Gradually add the sifted powdered sugar, one cup at a time, mixing well after each addition. Beat in the vanilla extract
  8. Add milk or heavy cream, one tablespoon at a time, until the frosting reaches your desired consistency – thick enough to hold its shape but spreadable. Now for the ocean magic! Add blue gel food coloring, starting with a tiny drop and adding more until you achieve your desired vibrant ocean blue hue for your Ocean Themed Birthday Cake. Gel colors provide a much richer color without thinning the frosting
  9. Once the cakes are completely cool, place one cake layer on your serving plate or cake stand. Spread a generous layer of blue frosting over the top. Carefully place the second cake layer on top
  10. Apply a thin layer of blue frosting all over the entire cake – top and sides. This is your "crumb coat," which traps any loose crumbs. Chill the cake in the refrigerator for 15-20 minutes to set the crumb coat
  11. Remove the cake from the fridge. Apply a thicker, even layer of the remaining blue frosting to the top and sides of the cake. Use an offset spatula or bench scraper to smooth the frosting as much as you like
  12. Create Sand: Gently press graham cracker crumbs around the bottom edge of the cake to create a sandy beach. You can also sprinkle some on top to form little "islands."
  13. Add Sea Creatures: Arrange your assorted candies – gummy sharks, Swedish Fish, sour worms – to look like they are swimming in the ocea
  14. Bubbles & Coral: Scatter edible pearls or white nonpareils for bubbles. If using, arrange your pretzel coral or other edible decorations
  15. Waves: For a wavy effect, use the back of a spoon or an offset spatula to create gentle swirls in the frosting on top of the cake, mimicking ocean waves. Your Ocean Themed Birthday Cake is now ready to impress!

Notes

Ensure your butter, eggs, and milk are all at room temperature before you start. This allows them to emulsify properly, creating a smooth, cohesive batter and a fluffy, airy frosting.

Measure flour correctly by spooning it into your measuring cup and then leveling it off with the back of a knife to prevent over-measuring.

Do not overmix the cake batter once dry ingredients are added; mix only until just combined to avoid a tough cake.

Cool cakes completely before frosting to prevent the frosting from melting and sliding off.

Always use gel food coloring for vibrant ocean blues, as liquid dyes can thin out frosting.

Don't skip the crumb coat! It seals in loose crumbs, ensuring a smooth final layer of frosting. Chill the cake after the crumb coat.

If frosting becomes too soft in a warm kitchen, refrigerate it for 10-15 minutes, then whip it briefly before continuing.

Pre-plan decorations by laying out all candies and decorations before placing them on the cake.

For sharp, clean edges, use an offset spatula or bench scraper. For extra smooth sides, warm your scraper under hot water, dry it, and use it to smooth the sides of the chilled cake.

Store the cake covered in a cool room (below 70°F/21°C) for up to 2 days, or refrigerate in an airtight container for up to 5-7 days.

For best taste and texture, remove the cake from the refrigerator 30-60 minutes before serving to allow it to come to room temperature.

Nutrition

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