Sorry but it's hard to advise on quantities for a recipe like this. As many bruschette as you make will get eaten. I usually make 2 per person.
Slice the bread into half inch slices and gently toast over a fire or in the toaster.
While still warm run with a clove of garlic, drizzle with olive oil. Layer a few truffles on top and top with a bit of flaky sea salt and black pepper if you’d like.
Recipe by Elizabeth Minchilli at https://www.elizabethminchilli.com/2021/09/truffle-bruschetta/