31.   This makes it easier to thicken the sauce without fear of its curdling.

32.   To thicken sauce, whisk in cornstarch and water mixture.

33.   We added a few teaspoons cornstarch to thicken the sauce slightly.

34.   When liquid boils, stir in dissolved cornstarch to thicken the sauce.

35.   Work on and off the heat, so that the butter softens and thickens the sauce without melting to oil.

36.   Thicken the sauce with the cornflour mix.