Spiced Poppyseed Cake with Almond Buttercream Frosting

Bahan-bahan (16 porsi)

• 3 cups all-purpose flour (spooned and leveled)
• 1 tablespoon baking powder
• 1/4 cup cornstarch
• 1 teaspoon nutmeg (freshly grated)
• 1 teaspoon cinnamon
• 1/4 teaspoon cardamom
• 1 cup salted butter (2 sticks, at room temperature)
• 2 cups sugar
• 1/2 cup honey
• 6 large eggs (separated, at room temperature)
• 2 cups milk (at room temperature (or warm it in the microwave until it's tepid))
• 2 tablespoons vinegar
• 1 tablespoon almond extract
• 1/2 cup poppy seeds
• 1/2 teaspoon cream of tartar
• 1 & 1/2 cups salted butter (at room temperature)
• 7 & 1/2 cups powdered sugar
• 1 & 1/2 teaspoons vanilla extract
• 1 & 1/2 teaspoons almond extract
• 6 tablespoons half-and-half (plus more if needed)
• poppy seeds (for sprinkling)