In a skillet on medium-high heat, heat the olive oil.
Add the minced garlic and heat for about 3 minutes, until fragrant.
Add the flour (start with 2 tablespoons), oregano, pepper, and salt. Whisk well.
Add the half & half all at once, whisking constantly. Cook and stir until the mixture is bubbly and thickened, which usually takes about 3 minutes.
