01 - Preheat your heart-shaped waffle iron according to manufacturer instructions.
02 - In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt.
03 - In another bowl, beat eggs, then add milk, melted butter, and vanilla extract. Mix until well combined.
04 - Pour wet ingredients into dry ingredients and stir gently until just combined. Do not overmix; a few lumps are acceptable.
05 - Lightly grease the preheated waffle iron with nonstick spray or melted butter.
06 - Pour approximately 1/2 cup batter into the waffle iron, filling each section according to your equipment's capacity.
07 - Cook according to waffle iron instructions, typically 3 to 5 minutes, until golden and crisp.
08 - Remove cooked waffles and keep warm while repeating the process with remaining batter.
09 - Serve warm waffles topped with fresh berries, powdered sugar, maple syrup, and whipped cream if desired.