A vibrant, aromatic concentrate made by slow-simmering fresh herbs and fruit in a Dutch oven, yielding a intensely flavorful base for refreshing, sugar-free Spanish-style agua fresca. This method creates a smooth, melt-in-mouth texture perfect for diluting with water or sparkling water.
Storage: Store the concentrate in an airtight container in the refrigerator for up to 1 week. For longer storage, freeze in ice cube trays and transfer to a freezer bag for up to 3 months. Make-Ahead: The concentrate can be made up to 2 days in advance. Flavors will meld and intensify. Variations: Substitute the melons with fresh peaches or berries. For a spicier version, add a small slice of fresh jalapeƱo during simmering. Serving Suggestion: Use as a base for cocktails (non-alcoholic) or mix with sparkling water for a refreshing spritzer.