Halfway to one! Celebrating a 6-month milestone is such a special moment, and what better way to mark the occasion than with a cute and delicious Half-Birthday Cake? Whether it’s for a cake smash, a fun family moment, or just an excuse to enjoy something sweet, this cake is the perfect way to celebrate your little one.

This small, soft, and lightly sweet cake is made with baby-friendly ingredients, making it perfect for little taste testers. You can also adjust the sweetness to fit your preference—whether you’re making it just for grown-ups or as a fun first taste for your baby.

Let’s bake a cake worthy of this sweet milestone! 🎉🎂

🛒 What You’ll Need

For the Cake (Baby-Friendly Option)

1 cup whole wheat or all-purpose flour
1 tsp baking powder
½ tsp baking soda
½ tsp cinnamon (optional for flavor)
1 ripe banana, mashed (natural sweetness)
¼ cup unsweetened applesauce or Greek yogurt
¼ cup milk (or breast milk/formula for baby-friendly version)
1 large egg
2 tbsp melted unsalted butter or coconut oil
1 tsp vanilla extract

For the Frosting (Baby-Friendly Option)

½ cup Greek yogurt (plain, unsweetened)
1 tbsp maple syrup or mashed banana (optional for sweetness)
½ tsp vanilla extract

For the Frosting (Sweeter Version for Adults/Kids)

½ cup unsalted butter, softened
1 cup powdered sugar
½ tsp vanilla extract
1 tbsp milk (as needed for consistency)

Decorations

Sprinkles (for older kids)
Fruit slices (banana, berries)
A cute “½” cake topper

👩‍🍳 Pro Tips for the Best 6-Month Birthday Cake

For extra moisture, use Greek yogurt or applesauce—this keeps the cake soft without too much sugar.
To make it extra fun, bake the cake in a 6-inch round pan, then cut it in half to create the perfect “half cake” look.
Frost just before serving if using Greek yogurt frosting, as it’s best fresh.
Make ahead! Bake the cake a day in advance and frost when ready to serve.
For a smash cake, keep the frosting light—babies love soft textures!

🔄 Substitutions & Variations

Dairy-Free? – Use coconut yogurt and plant-based milk.
No Banana? – Use applesauce or pumpkin puree instead.
Want a Sweeter Cake? – Add 2 tbsp honey or maple syrup for older kids/adults.
Fun Variation? – Add blueberries or grated carrots for extra flavor!

⏳ Make-Ahead & Storage Tips

Make the cake ahead: Store unfrosted cake wrapped in plastic wrap at room temp for up to 2 days, or refrigerate for 4 days.
Freeze it! Wrap the cake well and freeze for up to 3 months. Thaw in the fridge overnight.
Frost just before serving if using Greek yogurt frosting.

🔥 How to Make a 6-Month Birthday Cake

1️⃣ Preheat & Prep

Preheat oven to 350°F (175°C).
Grease a 6-inch round cake pan or an 8×4-inch loaf pan.

2️⃣ Mix Dry Ingredients

In a bowl, whisk together flour, baking powder, baking soda, and cinnamon.

3️⃣ Mix Wet Ingredients

In another bowl, mash banana and mix with applesauce, egg, milk, melted butter, and vanilla.

4️⃣ Combine & Bake

Slowly add wet ingredients to dry ingredients, stirring until just combined.
Pour batter into the prepared pan and smooth the top.
Bake for 20-25 minutes, or until a toothpick comes out clean.

5️⃣ Cool & Frost

Let the cake cool completely before frosting.
If making a half cake, cut the cake in half and stack the halves with frosting between them.
Spread frosting evenly and decorate with fruit or sprinkles.

6️⃣ Serve & Celebrate! 🎉

Add a cute “½” topper and serve immediately.
Perfect for a fun cake smash or a sweet treat for the family!

🎈 Time to Celebrate!

This adorable 6-month birthday cake is a fun and delicious way to celebrate your little one’s milestone. Whether you keep it baby-friendly or make it sweeter for the whole family, this cake is sure to bring smiles!

Tried this recipe? Let me know how your little one liked it! 🎂💖