Alfredo Sauce

Abby proclaimed this to be the best pasta sauce ever. The recipe is adapted from (oddly enough) "The BEST Alfredo Sauce" recipe on Gimme Some Oven: black pepper (not white) and no solid bits of garlic or heavy garlic flavor. I also have some prosciutto on hand at the time, so garnishing with crispy bits of that and parsley may have put it over the top.

• 1/2 tbsp butter
• 1 tbsp olive oil
• 2 cloves garlic, sliced
• 1 tbsp flour
• 1 c heavy cream (room temperature)
• 1 c half-and-half (room temperature)
• 1 c parmesan cheese, freshly grated (room temperature)
• 1/2 tsp salt
• 1/4 tsp black pepper, freshly ground

For optional garnish:

• 1 large slice prosciutto
• 1/2 tbsp olive oil
• 1 tbsp parsley, freshly chopped