He shrugged and said: "Well, Jose is like any dish in my restaurant. You like it or not, but it doesn't stay on the table for long."
Abramovich was making a rare public appearance with girlfriend Daria Zukhova, 24.
Asked about the restaurant, named Marco after its chef Marco Pierre White, he joked: "I haven't tried the food yet. If it's okay I might come. If not, then obviously I won't come here."