My prefix will later see you, My infix will tell what's true

Question

My prefix will later see you.

My suffix will make you calculate.

My infix will tell what's true.

My whole will make you salivate.

Answer 1

Here's a possibility:

My prefix will later see you.

See you = CU

My suffix will make you calculate.

SINE

My infix will tell what's true.

I (stands for a 1, which represents 'true' in Boolean? Or perhaps IS - what exists is true?)

My whole will make you salivate.

CUISINE

[Another (albeit weaker) possibility:]

MEATPIE. [Meat sounds like 'meet' ('will later see you'), pie sounds like 'pi' ('will make you calculate'), and t could mean 'true' in t\f (true\false) questions.]