Mayonnaise

1 small baguette, sliced in thin ¼, ¾ cup olive oil, divided, 2½ ounces Parmigiano Reggiano, di

3 carrots, chopped into 3, 2 onions, cut into 8 wedges, 2 leeks, cleaned and chopped into 1,

1 pound lump crab, 2 t Old Bay Seasoning, 1 T whole grain mustard, I like Pommery, 1 egg, lightly