America's Test Kitchen Rye Bread Recipe: Sourdough-Infused Crust With Deep Malty Flavor

America's Test Kitchen rye bread recipe delivers the perfect balance of sourdough-tangy crust and deep malty flavor—the kind that transforms ordinary meals into something truly special. After years of perfecting this loaf, I can confidently say this is the closest you'll get to artisanal bakery quality at home.

The secret lies in precise fermentation times and a careful blend of rye flour and starter.

What makes this recipe stand out is its foolproof method that accounts for variables like humidity and flour hydration. You'll work with a stiff dough that requires minimal handling, yet yields a dense, moist crumb with a crisp, caramelized crust that's impossible to resist.

The sourdough starter adds complexity, while the malty rye flour delivers that signature hearty flavor.

By the time you pull this loaf from the oven, you'll have a golden-brown crust with visible cracks and a dense interior that's perfect for sandwiches or serving alongside soups.

The aroma alone will have everyone gathering around your kitchen. This recipe builds on America's Test Kitchen's rigorous testing to ensure consistent results every time.

For those who want to experiment, you can easily adapt this base recipe with whole grains, seeds, or even a touch of honey for sweetness. The beauty of this method is its flexibility while maintaining that authentic rye bread character. Let's get baking this classic loaf!

Ingredients for america's test kitchen rye bread

Precision-mixed flours, active starter, and careful hydration create America's Test Kitchen's signature rye loaf.

The sourdough starter is non-negotiable here—it provides that signature tang and lift. For optimal results, use a 100% hydration starter that's been fed 12-24 hours before baking. King Arthur's sourdough starter or a well-maintained home starter both work beautifully. The dark rye flour should be stone-ground for maximum flavor; brands like Bob's Red Mill or Alaska White Mountain deliver that deep malty character. Store-bought rye bread flour blends often lack the complexity, so don't compromise here. The butter should be cold and cubed—this creates steam during baking for that signature crackly crust.

No dark rye flour? Substitute with a 1:1 blend of whole wheat flour and pumpernickel breadcrumbs, though the flavor won't be identical. Short on starter? Combine 1 tsp instant yeast with 1 tbsp honey and 1 cup warm water as a backup, but expect a less complex flavor profile. The honey is completely optional but enhances the crust's caramelization—local raw honey adds subtle floral notes. For the yeast, Fresh yeast requires activation in warm water with a pinch of sugar, while instant yeast can be mixed directly with dry ingredients. The cornmeal should be finely ground for even dusting, and the coarse sea salt for topping should be large flake variety like Maldon for best results.

This dough requires 24 hours of cold fermentation—plan ahead. Shape the loaf gently to avoid over-handling, which can develop gluten excessively. For storage, allow the bread to cool completely on a wire rack before wrapping in beeswax wrap or a cotton towel. It keeps best at room temperature for 3-4 days, though the crust hardens after 2 days. For longer storage, slice and freeze portions in airtight bags—they'll reheat beautifully in a toaster or oven. The aroma alone makes this worth the wait, so don't rush the fermentation process.

Step-by-step instructions for america's test kitchen rye bread recipe

Mastering this sourdough-infused rye requires precision in mixing and proofing for that signature malty depth.

In a large mixing bowl, combine the 0.5 cup active sourdough starter, 1.5 cups cold water, and 1 tbsp honey. Stir until fully dissolved—this creates the foundation for fermentation. In a separate bowl, whisk together the 3 cups dark rye flour, 1 cup all-purpose flour, 0.25 cup light brown sugar, 0.5 tsp instant yeast, and 1.5 tsp diamond crystal kosher salt. The rye flour should be sifted first to avoid clumping.

Gradually add the dry ingredients to the wet mixture while mixing with a wooden spoon. The dough will be sticky but should come together into a shaggy mass. Avoid overmixing—just until no dry flour remains. The texture should resemble thick pancake batter rather than smooth bread dough. Cover the bowl with a damp kitchen towel and let rest at room temperature for 30 minutes. This initial rest allows the gluten to relax and the sourdough to activate fully.

After the 30-minute rest, add the 0.25 cup cold unsalted butter, cut into small cubes, to the dough. Use your hands or a dough whisk to gently work the butter into the mixture until fully incorporated. The butter should melt slightly but remain in small pockets throughout the dough. This step is critical for creating the bread's tender crumb and rich flavor.

Transfer the dough to a lightly floured surface and knead gently for 2-3 minutes until just cohesive. The dough will remain sticky, so avoid adding excess flour—this prevents the bread from developing a tough crust. Shape the dough into a loose rectangle and fold it over itself like a letter, sealing the edges. This technique, called a "letter fold," helps strengthen the gluten structure without overworking the dough. Place the folded dough back in the bowl, cover, and let rest for another 30 minutes.

After the second rest, perform two more sets of folds—each separated by 30 minutes. For each fold, wet your hands slightly, grab one edge of the dough, stretch it upward, and fold it over itself. Rotate the bowl a quarter turn between folds to ensure even gluten development. The dough should become slightly smoother and more elastic with each fold. Bulk fermentation should take 2-3 hours total, or until the dough has nearly doubled in size and exhibits active bubbles along the surface.

To test readiness, perform a "poke test": gently press your finger into the dough. If it springs back slowly and leaves a slight indentation, it's ready. If it springs back quickly, let it ferment longer. Once ready, shape the dough into a 9x5-inch loaf pan by folding the edges inward and tucking them under. Dust the pan generously with 0.25 cup cornmeal to prevent sticking, then cover and refrigerate overnight (or at least 4 hours). Cold fermentation enhances flavor and improves texture.

Preheat your oven to 375°F with a Dutch oven inside for 30 minutes. Remove the Dutch oven from the oven and carefully transfer the chilled dough (still in the loaf pan) into it. Brush the top of the dough with cold water and sprinkle generously with 0.5 tsp coarse sea salt. Return the Dutch oven to the oven and bake, covered, for 30 minutes. This steaming phase creates the bread's signature crisp crust and open crumb.

After 30 minutes, remove the lid and bake uncovered for an additional 20-25 minutes, until the bread reaches an internal temperature of 205-210°F and the top is deep golden brown. The crust should crack slightly and develop a glossy sheen. If the top browns too quickly, tent loosely with foil to prevent over-browning. Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing. The internal temperature will rise slightly as it cools, ensuring even doneness.

Allow the bread to cool at room temperature for at least 2 hours before slicing. This resting period is essential—it allows the crumb to set and the flavors to meld. The bread should have a deep mahogany crust with a shatteringly crisp exterior and a soft, slightly dense crumb with pockets of air. Each slice should reveal a rich, caramelized color from the rye flour and a subtle sweetness from the brown sugar and honey.

Slice the bread with a serrated knife for clean cuts. Serve warm with cultured butter or apple butter to complement its malty depth. The sourdough starter adds a tangy complexity, while the butter contributes a luxurious richness. Store any leftovers in an airtight container at room temperature for 2-3 days, or freeze for up to 3 months. Reheat slices in a 350°F oven for 5-7 minutes to restore crispness.

Dietary considerations for america's test kitchen rye bread

Gluten-Free Adaptations

For a gluten-free version, replace the 3 cups dark rye flour and 1 cup all-purpose flour with a 1:1 gluten-free flour blend like King Arthur Measure for Measure or Bob's Red Mill 1-to-1. Add 1 tsp xanthan gum to the dry ingredients to mimic gluten's structure.

The dough will be crumbly, so mix wet ingredients first, then fold in dry until just combined. Expect a denser texture and shorter shelf life—gluten-free bread benefits from being eaten within 2-3 days for best freshness. 🌾

Lower Sugar Options

Reduce the 0.25 cup light brown sugar to 0.125 cup or omit entirely for a lower-sugar version. Boost sweetness with 1 tbsp molasses or 1 tsp maple syrup instead—they add depth without refined sugar.

The honey can also be halved or replaced with 1 tsp vanilla extract for flavor without sweetness. These swaps maintain malty notes while cutting sugar by up to 50%.

Dairy-Free Substitutes

Replace the 0.25 cup unsalted butter with 0.25 cup cold coconut oil or vegan butter like Miyoko's. For richness, add 1 tbsp neutral oil (like avocado or grapeseed) to the dough.

The texture will be slightly denser, but the crust remains crisp. Sprinkle with flaky salt instead of butter for serving—it enhances flavor without dairy.

Allergen-Free Adjustments

Check your sourdough starter for hidden allergens—some store-bought starters contain dairy or eggs. Use a 100% plant-based starter made with just flour and water. For nut-free kitchens, avoid adding seeds (like sesame or poppy) to the crust.

Always verify instant yeast and flour labels for cross-contamination warnings if severe allergies are a concern.

Lower-FODMAP Version

For digestive comfort, reduce the 0.5 cup sourdough starter to 0.25 cup and replace with 0.25 cup water + 0.5 tsp instant yeast. Omit the honey and brown sugar entirely—use 1 tsp stevia or monk fruit sweetener instead.

Swap dark rye flour for white rye flour (lower in fermentable carbs) or a low-FODMAP flour blend. This version is gentler on sensitive stomachs while keeping the rye character.

Frequently asked questions