Bring the orange zest, orange juice with the star anise, the pulp and the scraped out vanilla pods to the boil and reduce by about a third. Season with 1 teaspoon acacia honey, salt and pepper. In the meantime, sweat the diced onion and the peppers cut into strips (it tastes even better if you peel the peppers beforehand) in olive oil. Deglaze with the strained, reduced orange juice and season to taste.
Goes particularly well with grilled seafood, grilled fish and grilled meat.