Preheat the oven to 275° F.
Place the brie on a baking sheet. Bake for about 15 minutes, or until softened and warm.
Meanwhile, melt the butter in a small nonstick saucepan over medium heat. Reduce the heat to medium-low; add the brown sugar and stir occasionally until melted.
Make acidulated water by mixing the lemon juice into a small bowl of water. Dip the apple wedges into the water.
Place the warm cheese in a small serving bowl or on a small plate. Drizzle with the warm sauce. Garnish with the pecans in a pinwheel formation. Surround the cheese with the apple wedges.Servings: 4