Mustard Caviar - cooking recipe

Ingredients

1/2 cup rice vinegar
1/4 cup brown mustard seeds
1/4 cup yellow mustard seeds
1/4 cup apple cider vinegar
1/4 cup sugar
1/2 teaspoon kosher salt
3/4 cup water

Preparation

Bring all ingredients to a boil over medium high heat in a medium saucepan.
Reduce heat to low and simmer, stirring often and adding water by tablespoons if mixture is too dry.
Cook until mustard seeds and still firm and intact and pop like caviar when bitten into, about 45-50 minutes.
Remove saucepan from heat and let mustard mixture cool completely.
Transfer to an airtight container and refrigerate.
Keep chilled in the fridge for up to 2 weeks.