2 sticks (1 cup) unsalted butter, at room temperature
1/4 cup blackberry jam
1 tablespoon minced fresh mint leaves
1/2 teaspoon salt
Add the butter to a large mixing bowl and beat with a wooden spoon or rubber spatula until smooth. Add the jam, mint and salt and swirl in until partially incorporated. Roll into a log using a sheet of parchment, or pack into a ramekin, and refrigerate until firm, about 2 hours. Serve atop pancakes, waffles or French toast.