Put the strawberries, sugar, and vanilla extract in a small pot and let simmer on low heat, stirring occasionally, until the strawberries can be mashed with the back of a spoon and the jam has a sticky texture. Place in a small metal bowl and put in refrigerator to cool while you prepare the waffle batter. The jam can be made ahead and stored in an airtight container for several days.
Preheat your Belgian waffle maker.
In a large bowl, whisk together the eggs, milk, vegetable oil, vanilla extract, and sugar.
Sift the dry ingredients into the wet ingredients.
Whisk together until fully combined.
Fold the homemade strawberry jam into the waffle batter and stir gently until just combined. Chunks of strawberry jam will remain. Don't worry - they will taste delicious!
Stir in a few drops of red food coloring, if desired.
Spray the hot waffle iron with nonstick cooking spray. Pour the waffle batter into the waffle iron (exact quantity will depend on your waffle iron. Ours needed about a half cup of batter).Cook according to your waffle iron's instructions.
Remove the waffle from the iron and eat immediately!