To make the dressing, combine the olive oil, pesto, lemon juice and vinegar. Season well and whisk until smooth.
Prepare your braai or heat a cast iron pan to high heat.
In a large bowl, toss the peppers with 2 tablespoons of olive oil, chilli flakes, salt and pepper. Grill the peppers until softened and charred, 3–4 minutes per side. Remove from the braai and arrange on a serving plate.
Drizzle the vinaigrette over the peppers, top with the burrata, extra Pesto Princess Basil & Chilli Pesto and serve (breaking the burrata to let all of that rich and creamy goodness ooze out).