Melt the butter slowly in a small saucepan over low heat until it turns glossy and begins releasing a warm, nutty aroma.
Add the minced garlic and cook gently, letting it soften and perfume the butter without browning or becoming bitter.
Stir in salt, black pepper, and optional red pepper flakes to balance richness with a hint of heat.
Add a splash of lemon juice if desired to brighten the sauce and cut through the buttery depth.
Remove from heat and stir in fresh parsley so it stays vibrant, fragrant, and fresh-tasting.
Serve immediately over pasta, vegetables, seafood, bread, or warm dishes like Carrot and Parsnip Soup.