In a small saucepan, reduce balsamic vinegar over low heat until reduced to 1/2 cup, about 45 minutes. Set aside.
Store remaining vinegar reduction in an airtight container.
Heat 3 tablespoons olive oil in a skillet over medium-high heat. Add shallots and sauté until crisp. Place crisp shallots in a small bowl and set aside.
Place whole sage leaves in the skillet and cook over medium high heat until crisp. Remove gently to a plate.
Assemble Summeripe Peach Bruschetta
Spread goat cheese on toasted baguette slices.
Top with crisp shallots and diced peaches.
Drizzle with balsamic reduction and place a whole crisp sage leaf on top.