Wash and peel the asparagus and cut off the lower woody ends. Put asparagus in plenty of boiling salted water, add sugar and cook for 15-20 minutes, depending on thickness
For the sauce, wash the thyme and shake dry. Strip the leaves from the stems, except for a little to garnish. Clean and wash the rhubarb and cut it into 1 cm thick pieces. Peel and finely dice shallots
Heat the fat in a pot and sauté the diced shallots for about 5 minutes until translucent. After about 3 minutes add rhubarb. Deglaze with red wine and stock, bring to the boil and simmer for about 5 minutes. Stir starch and 3 tbsp. water until smooth and thicken the sauce. Season to taste with salt, pepper and thyme. Arrange asparagus, ham and sauce on plates. Garnish with thyme. Bread tastes good with it