1. Peel bananas, and cut bananas in half lengthwise. Cut each half crosswise into 2 pieces.
2. Heat a large nonstick skillet over medium-high heat. Add butter to pan, swirling to coat. Cook butter 1 minute or until lightly browned. Add bananas; sauté 1 minute or until browned and tender, turning once. Add 1 tablespoon sugar, stirring gently until sugar dissolves. Place bananas in a medium bowl.
3. Combine remaining 2 tablespoons sugar, juice concentrate, brandy, 1 tablespoon water, and salt in pan. Bring to a simmer; cook 1 minute. Drizzle sauce over bananas. Serve immediately over ice cream. Garnish with mint sprigs, if desired.