Eclair Pound Cake

Ingredients

• 1 1/4 cups all-purpose flour
• 3 tablespoons custard powder
• 3/4 teaspoon baking powder
• 1/2 teaspoon salt
• 1 cup unsalted butter, at room temperature
• 1/2 cup granulated sugar
• 3 eggs
• 2 teaspoons vanilla extract
• 3/4 cup sweetened condensed milk
• 1 cup chopped dark chocolate (or chocolate chips)
• 1/2 cup heavy cream
• 1/4 teaspoon espresso powder (optional)