Rhubarb Butterscotch Sauce

Ingredients

• 1 pound rhubarb
• trimmed and sliced 1/2-inch thick (about 4 cups)
• 1/2 cup dark brown sugar
• 2 tablespoons unsalted butter
• Pinch kosher salt

Instructions

1. In a medium saucepan over low heat, combine ingredients.
2. Cover and cook, stirring occasionally, until rhubarb breaks down, 15 to 20 minutes.