In a saucepan, heat the olive oil over medium heat.

Add the minced garlic and sauté for about 1 minute until fragrant.

Pour in the white wine and bring to a simmer. Cook for about 5 minutes to reduce slightly.

Add the chicken or vegetable broth and continue to simmer for another 5-10 minutes until the sauce thickens.

Stir in the lemon juice, if using, and season with salt and black pepper to taste.

Remove from heat and whisk in the butter until melted and the sauce is smooth.