Freeze your blender pitcher for 15 minutes before blending to keep the shake extra thick and creamy without over-blending, which can make it watery.

Opt for premium or homemade eggnog with higher fat content rather than light versions—it provides the authentic rich flavor and creamy texture that McDonald's uses.

Lightly toast whole nutmeg seeds in a dry pan for 30 seconds before grating fresh onto your shake to unlock deeper, more complex spice notes that elevate the flavor.

Use a 2:1 ratio of eggnog to ice cream with just 1/2 teaspoon vanilla extract per shake to prevent the vanilla from overpowering the delicate eggnog flavor profile.

Pulse-blend in 3-4 short bursts rather than continuous blending to achieve the signature McDonald's texture—creamy and thick, not over-mixed or aerated.