Step 1

Preheat waffle iron according to manufacturer instructions. Whisk together eggs, milk, butter, vanilla, and ¼ cup of the jam in a medium bowl until combined. Stir in flour, baking powder, and salt until just combined (small lumps are OK).

Step 2

Brush waffle iron with melted butter, and cook waffles according to manufacturer instructions, 3 to 5 minutes per waffle. While waffles cook, heat remaining ¾ cup jam in a small saucepan over medium-low, stirring occasionally, until heated through, about 5 minutes. Serve waffles with warm jam.