Cognac Chestnut Mushrooms on Floating Zucchini with Asparagus Cover them cook for 3-4 minutes and then turn them up Cover them cook for 3-4 minutes and then turn them up For this step for Cognac Chestnut Mushrooms on Floating Zucchini with Asparagus Peel you have to Cover them cook for 3-4 minutes and then turn them up