Scallops With Tarragon Butter without potatoes

2 tablespoons unsalted butter , divided 1/4 cup shallot , minced 1/2 cup dry white wine 1/3 cup whipping cream 4 teaspoons fresh tarragon , chopped & divided[...]

2 tablespoons olive oil 5 tablespoons butter 1 1/2 lbs sea scallops , dried well 1 teaspoon salt 1/4 teaspoon fresh ground black pepper 1/3 cup dry white wine[...]

2 lbs yukon gold potatoes , peeled, cut into 1-inch pieces 1 teaspoon salt 1/2 cup butter (1 stick) 1 tablespoon butter , room temperature 2/3 cup whole milk[...]