Blend watermelon in a blender or food processor until smooth.
Pour blended watermelon into a medium saucepan.
Add remaining ingredients to the saucepan.
Whisk until well combined.
Bring to a simmer over medium heat.
Reduce heat to low and simmer for 35 minutes, or until sauce has thickened.
Stir occasionally.
Season with salt and pepper to taste.
Let cool before using or storing.
Notes / Tips / Wine Advice:
Serving Tip:
Brush onto grilled chicken, pork, or shrimp during the last 15 minutes of cooking. Use as a dipping sauce for grilled vegetables or as a glaze for ribs.