Caramelized salmon with orange sauce

3 salmon fillets (about 200g each) 2 tbsp olive oil salt pepper

For the sauce:

150 ml fresh orange juice 30 ml fresh lemon juice 100 ml vegetable broth (½ cube + 100ml water) 1 tsp cornstarch 2 tbsp honey 1 tbsp Dijon mustard ½ tsp sliced chili