Combine the butter, olive oil, garlic and salt in a small shallow skillet and cook over low heat for 2 to 3 minutes, stirring to melt the butter and mellow the garlic.
Remove from heat and transfer to a bain-marie until needed for service.
Prepare 10 oz. of the Simplot fries according to the package directions. Remove from the fryer and drain them briefly.
Transfer the fries to a warm stainless steel bowl, drizzle with a 1 oz. ladle of garlic butter, add 1 tbsp. of parmesan cheese and 2 tsp. of parsley.