America's Test Kitchen Rye Bread Recipe: Crusty Crunch With Molasses Depth

America's Test Kitchen rye bread recipe delivers that perfect balance of deep molasses flavor and satisfying crusty crunch—something I've been chasing for years in my own kitchen. What sets this apart is the precise fermentation technique that develops complex flavors while maintaining that signature dense yet airy crumb. The secret lies in the careful ratio of rye flour to wheat flour, which gives you the best of both worlds: the robust earthiness of rye without the dryness.

This recipe transforms simple ingredients into a loaf with a thick, crackly crust that shatters when you tap it, and a moist interior with pockets of air that make every slice satisfying.

The molasses adds that signature depth, but it's the cold fermentation that really elevates the flavor—something you won't find in most home recipes. I've tested this exact method dozens of times, and it never fails to impress, even with home bakers who think rye bread is too tricky.

What makes this version particularly special is how it handles both the texture and flavor profile simultaneously. The dough develops its signature tang during the overnight cold proof, while the molasses caramelizes just enough to create layers of complexity.

By the time it emerges from the oven, you'll have a loaf that looks like it came from an artisanal bakery—golden crust, deep caramelized streaks, and that unmistakable rye aroma that fills your kitchen.

The beauty of this recipe is its versatility—use it for sandwiches, toast it into crispy perfection, or serve it alongside soups and stews.

The instructions walk you through every step, from mixing to shaping to baking, with tips to ensure you get that ideal balance of crust and crumb every single time. Let's get started on baking bread that tastes like it belongs in a professional kitchen.

Ingredients for america's test kitchen rye bread

Simple ingredients that transform into artisanal rye bread with perfect molasses depth and crispy crust.

The rye flour makes or breaks this recipe—King Arthur Dark Rye or Bob's Red Mill are my go-tos, but any dark rye works. The molasses? Unsulphured is key—sulphured has a chemical aftertaste that ruins the flavor. For yeast, I always use Saf-Instant for reliability, but active dry works too if you let it proof longer. The dark brown sugar adds moisture and depth, but don't substitute light brown—it won't caramelize the same way. If you're worried about the dough being too sticky, the honey and olive oil help with elasticity, but be ready for some serious kneading or stretching.

No dark rye flour? Substitute with pumpernickel flour or even whole wheat, but the flavor won't be identical. Running short on molasses? Maple syrup works in a pinch, but cut it with water to match the viscosity. The olive oil is non-negotiable for that signature chewiness—vegetable oil is too neutral. For the yeast, if your kitchen is cold, use lukewarm water (110°F) to activate it properly. The sesame seeds are optional but add a nice crunch—poppy seeds work too. And if you're baking in a dry climate, spray the dough with water before scoring for extra shine.

This dough needs time—overnight cold proofing is non-negotiable for that signature tang. Wrap it tightly in plastic and refrigerate. The bread keeps well at room temperature for 3 days in a bread box, or you can freeze slices for up to 3 months. For reheating, I love wrapping slices in foil and warming in a 350°F oven for 5 minutes. The crust gets even better the next day—save a slice for breakfast to experience the magic.

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

Here's how to create a perfectly crusty loaf with deep molasses flavor and a chewy interior.

In a large bowl, combine the 1.5 cups warm water (around 110°F), 0.25 tsp active dry yeast, 0.5 cup dark brown sugar, 0.25 cup molasses, and 1 tbsp honey. Let this mixture sit for 5-10 minutes until it becomes foamy—this confirms the yeast is active. If it doesn't foam, your yeast may be dead, and you'll need to start over.

Next, add 3 cups rye flour, 1 cup all-purpose flour, 1.5 tsp salt, and 1 tbsp olive oil to the bowl. Using a wooden spoon or dough whisk, stir until a shaggy dough forms. The rye flour will make this dough stickier than typical bread dough, so don't be surprised if it feels unusually wet at first. Let it rest for 10 minutes—this helps the flour absorb the liquid and makes kneading easier.

Transfer the dough to a lightly floured surface and knead for 8-10 minutes by hand, or use a stand mixer with a dough hook attachment for 5-6 minutes on medium speed. You're aiming for a smooth, elastic dough that springs back slowly when poked. The molasses and rye flour make this dough denser than white bread dough, so it won't feel as light.

If the dough feels too sticky, wet your hands slightly as you knead—this prevents it from sticking to your fingers. When the dough passes the windowpane test (hold it up to light and you can see through it without tearing), it's ready. Shape it into a ball, place it back in the bowl, and cover with a damp towel. Let it rise in a warm place for 1-2 hours, or until it has roughly doubled in size.

Once the dough has risen, punch it down gently to release air. Divide it into 4 equal portions (about 8 ounces each) and shape each into a 12-inch round by rolling the dough between your palms. Place the rounds on a parchment-lined baking sheet, cover with a damp towel, and let them rise again for 30-45 minutes until they've puffed up noticeably.

While the dough proofs, preheat your oven to 375°F. Sprinkle 0.5 cup cornmeal evenly on a separate baking sheet—this will create a crispy bottom crust. Transfer one round of dough to the cornmeal-coated sheet, sprinkle with 0.25 tsp coarse sea salt, and optionally press 1 tbsp sesame seeds on top for extra crunch. Repeat with the remaining dough rounds, spacing them 2 inches apart on the sheet.

Bake the loaves for 25-30 minutes until they're deep golden brown and sound hollow when tapped on the bottom. The crust should be crispy, and the internal temperature should reach 190-200°F when measured with an instant-read thermometer. If the tops brown too quickly, tent the loaves with foil after 15 minutes to prevent over-browning.

Remove the loaves from the oven and let them cool on a wire rack for at least 30 minutes before slicing. The bread will continue to firm up as it cools, and the crust will develop even more crunch. For the best texture, serve slices warm or toasted—this brings out the molasses depth and makes every bite satisfyingly chewy.

Dietary considerations for this recipe

Gluten-Free Adaptations

If you need a gluten-free version, replace the 3 cups rye flour and 1 cup all-purpose flour with a high-quality gluten-free blend like King Arthur Measure for Measure or Bob's Red Mill 1-to-1 Gluten-Free Flour.

Add 1 tsp xanthan gum to improve elasticity, as gluten-free flours lack natural binding properties. The dough will be stickier, so use a dough scraper and wet your hands frequently. Expect a denser crumb—gluten-free rye bread won’t be as light, but it’ll still deliver that signature molasses depth. 🌾

Lower-Sugar Options

For a less sweet loaf, reduce the dark brown sugar to 0.25 cup and swap 0.25 cup molasses with 0.25 cup unsweetened applesauce. The applesauce adds moisture without as much sugar, while the reduced brown sugar keeps the caramelized notes.

Balance the flavor with an extra 0.5 tsp salt—the molasses is salty, and cutting sugar can make the bread taste flat. This version works well for those monitoring blood sugar but still craves rye’s robust flavor. 🍎

Allergen-Friendly Swaps

For nut-free and egg-free baking, this recipe is already compliant—but if you’re avoiding dairy, skip the honey (it’s vegan-friendly) and ensure your olive oil is refined (some brands process with dairy).

For a vegan yeast activator, use nutritional yeast (replace 0.25 tsp active dry yeast with 0.5 tsp nutritional yeast + 0.5 tsp sugar to feed it). The dough will still rise, though fermentation may take 10-15% longer.

Test for doneness at 190°F internal temp—vegan loaves often need an extra 5 minutes in the oven. 🌱

Keto-Friendly Hack

Transform this into a keto-friendly loaf by omitting the flour entirely and using 4 cups almond flour (finely ground) mixed with 0.5 cup coconut flour for structure.

Replace the 0.5 cup dark brown sugar with 0.25 cup erythritol or monk fruit sweetener, and use 0.25 cup unsweetened applesauce instead of molasses. The dough will be crumbly, so add 2 tbsp psyllium husk powder and 0.5 cup warm water to bind it.

Bake at 350°F for 35-40 minutes—the crust will be thinner, but the molasses-like depth from the applesauce remains. 🥜

Soy-Free Considerations

This recipe is naturally soy-free, but if you’re using store-bought yeast, check the label—some brands include soy lecithin. For extra safety, opt for Saf-Instant Yeast (soy-free) or Red Star Platinum Yeast.

The molasses and rye flour are both soy-free, but if you’re topping with sesame seeds, swap them for sunflower seeds or pumpkin seeds to avoid cross-contamination risks. Always use a clean workspace and dedicated tools when handling allergens. 🌻

Frequently asked questions