1/4 c olive oil 3 cl garlic 2 large leeks white part 2 large yellow onions thin slice 6 scallions 4 shallots 2T flour 1/2c white wine 2 T cognac Salt white pepper Simmer veggies on lowlow heat 30 min add garlic last few min Add liquid stir @low boil until sos thick Use in place of pizza sos