How do I stop my sauce from curdling?

If a dairy-based sauce curdles, immediately halt the cooking process. Take your pan off the heat and place it in an ice bath. Atomic Kitchen recommends adding an ice cube or two to your sauce to ensure it cools on the double. If the clumps are relatively few, you can pour the whole sauce through a sieve.

How do you keep drinks from curdling?

Avoid Curdling in Drinks

Safeguard your cocktails against curdling by choosing high-fat cream liqueurs, or varieties made with heavy cream rather than milk. Heavy cream resists curdling because there are relatively few protein strands and plenty of fat to insulate them from the acid.