Ube Halaya (Purple Yam Jam)

In a 4-quart saucepan, heat ube over medium-high heat. Cook, stirring occasionally, until ube has started to deepen in color and any excess water has been cooked off, about 3 minutes. Rezel Kealoha Add sugar and coconut milk and stir to combine. Bring mixture to a boil, then lower heat to maintain a gentle simmer. Cook, stirring and scraping frequently to prevent the ube from sticking to the saucepan, until the mixture has thickened to a jammy consistency, about 30 minutes. Rezel Kealoha Add butter and salt and continue to cook until mixture is dark purple in color and has reduced to a viscous, paste-like consistency, about 15 minutes. Rezel Kealoha Transfer to a heatproof medium bowl and let cool completely, about 30 minutes. Cover and refrigerate until cold. Rezel Kealoha