In a large mixing bowl, use an electric hand mixer to beat together the eggs, sugar, and vanilla extract until creamy.
Mix in the flour, baking powder, and salt until just combined.
Add in sour cream and melted butter and mix until the batter is smooth.
Resting
Let the batter rest at room temperature for 20 minutes before making the waffles.
Cooking
Spray the heart-shaped waffle iron with nonstick cooking spray.
Heat the waffle iron.
Pour in 1/3 cup of the batter onto the waffle iron. Close and cook until light brown. (The waffle iron will beep.)
Notes
Serve with butter and brown cheese, or topped with jam or fruit and top off with a dusting of powdered sugar or a dollop of whipped cream.Source: VisitNorway.com