Strawberries tossed with balsamic vinegar and tarragon and served in pastry shells can be served as a not-too-sweet dessert or an over-the-top salad.
In a bowl, stir strawberries, 2 tablespoons of the sugar, the vinegar and minced tarragon; refrigerate 1 hour.
Heat oven to 400 F. Brush tops of pastry shells with milk; sprinkle with remaining 1 tablespoon sugar. Bake at 400 F for 22 minutes. Remove from oven. Carefully remove tops with a fork; set aside.
Return shells to oven for an additional 2 minutes. Remove from oven and brush inside of shells with strawberry jam.
Spoon 1/2 cup strawberry salad into each shell. Rest top on the side, garnish with fresh tarragon sprigs and serve.