For the wine syrup: Combine the wine, peach nectar, brandy, 1/4 cup sugar, 2 tablespoons honey, cinnamon sticks and vanilla bean in a large high-sided saute pan and bring to a boil over high heat. Reduce to a simmer and cook, stirring occasionally, until thickened to a syrup, about 10 minutes. Strain.
For the peaches: Preheat a gas grill to medium-high.
Melt the butter in a small saucepan over medium heat. Brush the cut sides of the peaches with butter and sprinkle with remaining 2 tablespoons sugar and some cinnamon. Grill cut-side down and cook until slightly caramelized, 2 to 3 minutes
For the peach chutney: Coarsely chop the peaches and toss with another pinch cinnamon, a few tablespoons of the wine syrup, some torn mint leaves, a splash of canola oil and salt and pepper. Goes great with pork.
For the grilled peach dessert: Place the peaches cut-side up on a platter. Spoon some creme fraiche in the center of each, drizzle over some wine syrup, a bit of honey and garnish with mint leaves. Serve warm or at room temperature.