Melt unsalted butter in a medium saucepan over low heat.
Add minced garlic and sauté gently for 2-3 minutes.
Incorporate chopped parsley into the mixture.
Squeeze in lemon juice to enhance flavor.
Season with salt and pepper to taste.
Add red pepper flakes if desired.
Stir thoroughly to combine all ingredients.
Remove from heat once garlic is aromatic.
Serve immediately or store for later use.