Peel and finely chop the onion. Cream butter in a mixing bowl with the whisk of the hand mixer. Add onion, olive oil and orange juice and mix in. Season with salt and pepper
Line 3 small tureen moulds (150 ml capacity each) or another mould with foil and spread butter in it. Cover and put in a cold place
Per total about 8810 kJ, 2100 kcal. E 3 g, F 228 g, KH 10 g