Chocolate Easter Egg Nest Cake with Mini Eggs

Ingredients

• 1 3/4 cups (220 g) all-purpose flour
• 3/4 cup (65 g) unsweetened cocoa powder
• 1 3/4 cups (350 g) granulated sugar
• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon fine salt
• 2 large eggs, room temperature
• 1 cup (240 ml) buttermilk, room temperature
• 1/2 cup (120 ml) neutral oil
• 2 teaspoons vanilla extract
• 1 cup (240 ml) hot coffee or hot water
• 1 cup (226 g) unsalted butter, softened
• 3 1/2 cups (420 g) powdered sugar
• 1/2 cup (45 g) unsweetened cocoa powder
• 1/4 cup (60 ml) heavy cream, plus more as needed
• 1 teaspoon vanilla extract
• 1/4 teaspoon fine salt
• 5 oz (140 g) semisweet chocolate, chopped
• 2 cups (70 g) lightly crushed shredded wheat cereal
• 1 1/2 cups (250 g) pastel mini chocolate eggs