In a jar or bowl, combine the olive oil, white balsamic, peach preserves/honey, garlic, basil, oregano, and a big pinch of salt and pepper. Shake or whisk until emulsified. Taste and adjust salt and pepper.
Heat a grill pan or grill to medium, or preheat the broiler on high. Brush both sides of the sourdough with 2-3 tablespoons of the vinaigrette. Grill/broil the bread slices for 1-2 minutes per side until toasted to your liking.
Slice the avocado and arrange on one side of the bread. Break the burrata overtop. Sprinkle with sunflower seeds and drizzle generously with vinaigrette. Eat!
Notes
*Leftover vinaigrette: The dressing is splendid for salads and meat marinades. Any unused dressing will keep for up to 2 weeks in the fridge.