Vanilla Bean Birthday Cake Buttercream (Printer-friendly)

Classic tender vanilla cake with creamy buttercream layers, perfect for celebrations and special moments.

# What You Need:

→ For the Vanilla Bean Cake

01 - 2 ½ cups all-purpose flour
02 - 2 ½ tsp baking powder
03 - ½ tsp fine salt
04 - 1 cup unsalted butter, softened
05 - 2 cups granulated sugar
06 - 4 large eggs, room temperature
07 - 1 tbsp vanilla bean paste (or seeds scraped from 2 vanilla beans)
08 - 1 cup whole milk, room temperature

→ For the Buttercream Frosting

09 - 1 ½ cups unsalted butter, softened
10 - 5 cups powdered sugar, sifted
11 - 2 tbsp whole milk
12 - 2 tsp vanilla extract
13 - Pinch of salt

→ For Decoration (Optional)

14 - Sprinkles or edible flowers

# How to Make It:

01 - Preheat oven to 350°F. Grease and line two 9-inch round cake pans with parchment paper.
02 - Whisk together flour, baking powder, and salt in a medium bowl until evenly distributed.
03 - Beat butter and sugar together in a large bowl until light and fluffy, approximately 3–4 minutes.
04 - Add eggs one at a time, beating thoroughly after each addition. Mix in vanilla bean paste until incorporated.
05 - Add flour mixture in three parts, alternating with milk, beginning and ending with flour. Mix until just combined; avoid overmixing.
06 - Divide batter evenly between prepared pans. Smooth tops with a spatula to create even layers.
07 - Bake for 30–35 minutes, or until a toothpick inserted into the center emerges clean.
08 - Let cakes cool in pans for 10 minutes, then turn out onto wire racks to cool completely before frosting.
09 - Beat butter on medium speed until creamy, about 2 minutes. Gradually add powdered sugar on low speed. Add milk, vanilla, and salt; beat on high for 3 minutes until fluffy.
10 - Place one cake layer on a serving plate. Spread a generous layer of buttercream on top. Position the second layer over the first, then frost the top and sides evenly.
11 - Garnish with sprinkles or edible flowers if desired. Serve immediately or refrigerate until ready to serve.

# Expert Tips:

01 -
  • The texture is incredibly tender with a tight, velvety crumb that melts in your mouth
  • Real vanilla bean paste creates those beautiful flecks and deeper flavor you cant fake
  • The buttercream is stable enough for detailed decorating but still tastes luxurious
02 -
  • Room temperature ingredients aren't optional, they're essential for proper emulsion
  • Overmixing once flour is added creates tough, rubbery cake no amount of frosting can hide
  • Simple syrup brushed on cooled layers keeps the cake moist for days
03 -
  • Weigh your ingredients if possible, especially flour, for consistent results every time
  • Vanilla bean paste is worth the investment, but pure extract works in a pinch with doubled quantity

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