America's Test Kitchen Garlic Bread Recipe: Buttery, Toasted Layers With Perfect Garlic Infusion

America's Test Kitchen garlic bread recipe delivers restaurant-quality results with buttery, toasted layers and perfect garlic infusion—no soggy bread in sight. ✨ After testing dozens of variations, we discovered the secret lies in precise measurements and a foolproof technique that transforms ordinary bread into something extraordinary.

The key is balancing garlic flavor without overpowering the buttery richness, and we've perfected that ratio through rigorous testing.

This recipe starts with homemade dough (or high-quality store-bought bread) that bakes up crisp on the outside while staying soft inside. The garlic butter—made with fresh garlic, melted butter, and a touch of parsley—gets spread evenly, then baked until golden and aromatic.

We've eliminated common pitfalls like uneven browning or overly garlicky flavors, ensuring every bite is consistently delicious.

The result is crispy, toasted garlic bread with layers of buttery richness and just the right amount of garlic aroma. The crust is perfectly golden, the interior stays tender, and the garlic flavor infuses without dominating.

This is the kind of garlic bread that disappears faster than you can say "second slice."

Whether you're serving it alongside pasta, pizza, or as a standalone appetizer, this recipe delivers professional-quality results every time. Let's get started with the step-by-step method that's been tested to perfection.

Ingredients for america's test kitchen garlic bread

Nine ingredients. One perfect, restaurant-worthy loaf—no soggy bread here.

The butter is non-negotiable—unsalted, cold cubes create the best texture. Plugrá or European-style butter has higher fat content, which gives that signature richness. If you're using salted, cut the kosher salt back to 1/4 teaspoon. The garlic needs to be fresh and minced finely—no pre-minced jars, those turn bitter. For the bread, Brioche or a good sourdough works too, but a classic baguette delivers that perfect crust-to-interior contrast. Grab one from Whole Foods or your local bakery if you can—store-bought loaves often have too much preservatives.

No fresh parsley? Dried Italian seasoning at half the amount works in a pinch, but it lacks that bright finish. Short on garlic? Garlic powder at one-third the amount (so 2 teaspoons) gets you close, but the flavor won't be as deep. The cornstarch is key—it prevents the butter from separating when melted. If you don't have it, all-purpose flour works too. For the olive oil, a fruity, peppery variety like California Early Harvest adds another layer of flavor. And if you're feeling fancy, add a pinch of red pepper flakes to the butter mix for a subtle kick.

This butter mixture keeps in the fridge for up to 3 days, covered tightly. The bread stays fresh for 2 days if wrapped in foil, but it's best served the same day it's baked. For extra crispiness, bake the bread right before serving—5 minutes at 375°F revives it perfectly. Portion the butter into small containers if you're making it ahead, then just melt and mix when ready. The Parmesan topping? Freshly grated only—pre-shredded gets clumpy and loses flavor fast.

Step-by-step instructions for america's Test Kitchen garlic bread recipe

Here's how to make buttery, toasted garlic bread with perfect garlic infusion every time.

In a small bowl, combine the 0.5 cup unsalted butter (cold, cut into small cubes) with the 1 tbsp cornstarch. This prevents the butter from separating during baking. Use a fork to mix until the butter is evenly coated with the cornstarch—you're essentially making a butter slurry.

Add the 6 cloves minced fresh garlic cloves, 0.5 tsp diamond crystal kosher salt, and 0.25 tsp freshly ground black pepper. Mix until fully incorporated, then fold in the 0.25 cup chopped fresh flat-leaf parsley. The parsley adds freshness that balances the richness of the butter. Cover the bowl and refrigerate for 30 minutes—this allows the garlic to soften slightly and infuse the butter more thoroughly.

Preheat your oven to 425°F. The high heat is crucial for achieving that perfect toasted crust. While the oven heats, slice the 1 whole high-quality store-bought baguette lengthwise into two equal pieces—this creates a flat surface for maximum contact with the garlic butter.

Brush the cut sides of the baguette halves with the 1 tbsp extra-virgin olive oil. This helps the bread toast evenly and prevents the garlic butter from sticking to the bread. Place the baguette halves cut-side up on a baking sheet lined with parchment paper. The parchment prevents sticking and makes cleanup a breeze.

Remove the garlic butter mixture from the refrigerator and spread it evenly over the cut sides of the baguette halves. Use a spatula to press the butter mixture into the bread, ensuring every inch is coated. This step is where the magic happens—the butter will melt and create that irresistible aroma as it bakes.

Bake for 10-12 minutes until the edges are deep golden brown and the bread is crispy to the touch. The garlic butter should bubble and sizzle slightly—this indicates it's cooking properly. If the top browns too quickly, tent with foil for the last 2-3 minutes to prevent over-browning while still toasting the bread.

For an extra touch of decadence, sprinkle the baked garlic bread with the 0.25 cup freshly grated parmesan cheese immediately after removing from the oven. The cheese will melt slightly from the residual heat, adding another layer of flavor. Return to the oven for 1-2 minutes if you want a more pronounced cheese effect.

Let the garlic bread rest for 2-3 minutes before serving. This allows the bread to set slightly and makes it easier to slice. Cut into 1-inch thick pieces and serve immediately while still warm. The bread should be crispy on the outside with a soft, buttery interior infused with garlic flavor. Each bite should deliver that perfect balance of toasted bread, rich butter, and aromatic garlic.

Creative variations of this recipe

Herb-Infused Twist

Swap the parsley for 2 tbsp chopped fresh rosemary or 1 tbsp chopped fresh thyme to create a fragrant herb garlic bread. I find rosemary pairs beautifully with the garlic and butter, adding a piney aroma that complements the richness.

For a Mediterranean touch, mix 1 tbsp chopped parsley with 1 tsp chopped oregano—this combo adds depth without overpowering the garlic. 🌿

Spicy Kick

Add ½ tsp red pepper flakes or 1 tsp finely chopped fresh jalapeño to the garlic butter for a subtle heat. For a smoky-spicy version, mix in ½ tsp smoked paprika with the garlic and salt.

This works especially well with brioche bread, which can handle the extra moisture from the spicy elements. Serve with a cool, creamy dip like garlic aioli to balance the heat. 🌶️

Cheesy Variations

Replace the parmesan topping with ½ cup shredded mozzarella for a gooey, melty finish. For a gourmet twist, use ¼ cup grated pecorino romano mixed with 2 tbsp chopped sun-dried tomatoes.

Sprinkle the cheese on before baking, then broil for 1-2 minutes at the end for extra browning. This version feels like a decadent appetizer rather than just bread. 🧀

Sweet Garlic Bread

Balance the savory garlic with sweetness by adding 1 tbsp honey or 1 tbsp maple syrup to the butter mixture. This works surprisingly well with sourdough bread and pairs beautifully with spiced nuts like candied pecans on top. The sweetness mellows the garlic's intensity while adding a caramelized depth. 🍯

Breakfast Style

Transform this into a breakfast bread by adding 1 tbsp chopped chives and ¼ tsp cinnamon to the butter. Serve with a side of scrambled eggs or avocado toast. For extra indulgence, sprinkle with crumbled bacon bits before baking. This version feels like a luxurious brunch centerpiece. 🍳

Gluten-Free Adaptation

Use a high-quality gluten-free baguette like Schär or Canyon Bakehouse for a grain-free version. The butter mixture stays the same, but brush the bread with extra olive oil> before spreading to help it crisp up.