Lemon Curd filled Ebelskiver - Nordic Ware

Ingredients

• 1/ 4 cup mascarpone cheese
• 1/ 4 cup lemon curd
• 1 3/ 4 cup all-purpose flour
• 3/ 4 teaspoon baking soda
• 1 teaspoon baking powder
• 1 1/ 2 tablespoons sugar
• 1/ 2 teaspoon salt
• 1 tablespoon finely grated lemon zest
• 3 large eggs, room temperature
• 1 3/ 4 cup buttermilk
• 1/ 2 teaspoon vanilla extract
• 4 tablespoons butter, melted and cooled