How much nutmeg to you put in a custard tart?

For a custard tart, you typically add about 1/4 to 1/2 teaspoon of nutmeg for a standard recipe. This amount enhances the flavor without overpowering the custard. Adjust according to your taste preference, but it's best to start with less and add more if desired. Always remember that nutmeg is quite potent, so a little goes a long way!