The Buttermilk Tangzhong Recipe
Fresh Milled Sandwich Bread (or Buns) Soft, Fluffy, and Made from Scratch
It’s like sourdough and yeast bread had a baby. That’s the best way I can describe it. My husband took one bite and called it the Wonderbread recipe, and that name has stuck ever since. Highest compliment a whole wheat loaf has ever gotten in this house.
It’s incredibly soft, but stays together as a great sandwich bread. It has just enough tang from the buttermilk to make you think there’s something more going on, but it’s a same-day bread with no overnight ferment or sourdough starter to maintain. Just freshly milled hard white wheat, a handful of real ingredients, and one extra step that changes everything.
That step is called a Tangzhong. You cook a small amount of your flour with buttermilk into a loose paste before it ever touches the rest of the dough. When the starch gelatinizes, your flour can absorb more liquid than it normally would, which means a softer, more tender crumb and a loaf that stays soft longer after baking. It sounds fancy. It takes about five minutes.
I use buttermilk in my Tangzhong instead of regular milk. The slight tang it adds is exactly where that sourdough-like flavor comes from, without any of the fuss. The lactic acids in buttermilk also help break down phytic acid in the whole grain flour, which means your body can absorb more of the iron, zinc, and magnesium already in the fresh milled wheat. You’re not just baking softer bread, you’re making it more nourishing too.
I also use olive oil instead of butter and a splash of apple cider vinegar to help the loaf keep.
This is my master dough. Two sandwich loaves or sixteen burger buns. It’s the same dough, same process, same result every time.
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A Note on the Tangzhong
You want to pull the Tangzhong off the heat the moment it just starts to thicken. Keep stirring as it sits, because it will continue to thicken off the burner. What you’re going for is a cream of wheat consistency that is smooth, thickened, but pourable. Not a thick paste. I found that if I let it get too thick on the heat, my loaves came out drier. Pull it early and let the carry-over heat finish the job. (It will continue to thicken up as it cools which is to be expected.)
Recommended Tools
Grain Mill
- NutriMill Classic Grain Mill — This is the mill I use every single bake. Consistent grind, easy to use, and built to last.
Mixer
- Bosch Universal Plus Stand Mixer — My mixer of choice for fresh milled doughs. Handles heavy whole grain dough without breaking a sweat. Use Code: STEWARDINGFAITHFULLY for $20 off.
Baking
- Cast Iron Loaf Pans — Cast iron holds heat evenly and gives you that perfect crust. These are what I use for every sandwich loaf.
- Bench Scraper — Essential for dividing dough and keeping your counter clean. Grab one if you don’t have it.
- Dough Whisk — Makes mixing wet and dry ingredients together so much easier than a spoon or spatula.
Measuring
- Digital Kitchen Scale — Fresh milled flour baking is so much more reliable by weight than by cup. A scale is non-negotiable.
- Digital Thermometer — Take the guesswork out of doneness. Pull your loaves at 190 degrees F every time.
Buttermilk Tangzhong Sandwich Bread
Recipe by
Servings
2 loaves or 16 buns
Prep time
20 min
Cooking time
40 minutes
Total Time
5 hours 30 minutes
This bread is so soft. It has just enough tang from the buttermilk to make you think there’s something more going on, but it’s a same-day bread with no overnight ferment or sourdough starter to maintain. Just freshly milled hard white wheat, a handful of real ingredients, and one extra step that changes everything.
Ingredients
- 760g fresh milled hard white wheat flour (save 1/2 cup (60g) for the Tangzhong)
- 250g (1 cup) full-fat buttermilk
- 240g (1 cup) warm water
- 3 Tbsp raw honey
- 60g (1/4 cup) olive oil
- 2 large eggs
- 1 Tbsp apple cider vinegar
- 2 1/2 tsp salt (I like Redmond Real Salt)
- 4 tsp instant yeast (4 1/2 tsp if using active dry yeast)
Directions
- Make the Tangzhong: Whisk together the 60g (1/2 cup) of flour and the buttermilk in a small saucepan over medium heat, stirring constantly. Watch it closely. The moment you see it just starting to thicken and the whisk leaving trails, pull it off the burner. Keep stirring as it sits off the heat. (it will continue to thicken on its own) You’re going for a cream of wheat consistency, smooth and loose, not a thick paste. If it gets too thick, your loaf will actually come out drier. Let it cool to room temperature before adding it to your dough. (It will continue to thicken as it cools which is expected)
- Build the Dough: Add the warm water, olive oil, honey, eggs, apple cider vinegar, and salt to your mixer bowl. Mix briefly to combine. Add the cooled Tangzhong and mix again. Then add the rest of your flour and mix until no dry flour remains. Cover the bowl and let it rest for 15 to 20 minutes. This is your autolyse step. It lets the bran fully hydrate before kneading starts. You can go up to 30 minutes since there is no yeast in there yet.
- Add Yeast and Knead: Sprinkle in the yeast and mix to incorporate. Then knead until the dough is smooth, elastic, and stretchy. It should be slightly tacky but not sticky. You’re looking for a good stretchy dough. Fresh milled note: Windowpane with fresh milled flour will not look perfectly translucent like white flour. You are looking for the dough to stretch thin without tearing.
- Kneading times vary according to the type of mixer you are using. This could take as little as 8 -10 minutes in the Bosch mixer or as long as 25 minutes in a KitchenAide stand mixer.
- First Rise: Once the dough has finished kneading, cover and let rise until doubled, about 1 to 1 1/2 hours with instant yeast in a warm kitchen.
- For Sandwich Loaves: Lightly oil your counter and hands. Divide the dough in half. Pat each piece flat, fold the far corners in to create a point, then roll it up toward you with just enough tension to create a tight top. Pinch the seam closed and place seam-side down in a buttered or parchment-lined 4.5×8.5 (1 lb) loaf pan.
- Second Rise: Cover and rise 40 to 50 minutes, until the dough crowns above the rim.
- Bake: 350 degrees F for 38 to 43 minutes. Internal temp should hit 190 degrees F in the center. Cool on a wire rack. Wait until fully cool to slice.
- For Buns: Divide the full dough into 16 equal pieces, about 85 to 90g each. Roll each into a smooth ball by cupping your hand over the dough on an unfloured counter and using a circular motion to build surface tension. Place on a parchment-lined baking sheet about 2 inches apart.
- Second Rise: Cover loosely and rise 30 to 40 minutes until puffy. Optional: brush with egg wash (1 egg + 1 Tbsp water) for a shiny top. Sesame seeds or everything bagel seasoning are great here.
- Bake: 375 degrees F for 18 to 22 minutes until deep golden. Internal temp 190 degrees F.
Storage
Let cool completely before storing. Slice loaves and freeze in a zip-top bag for up to 4 months. Pull out slices as you need them and let them come to room temp on the counter. Buns freeze the same way. The Tangzhong method helps this bread stay soft 2 to 3 days on the counter, but in our house it never lasts that long.
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Notes and Swaps
- Buttermilk note: Buttermilk is looser than regular milk and releases more moisture into the dough. Cook the Tangzhong until you see it just beginning to thicken. Don’t rush it, but don’t let it go too far either.
- No buttermilk? Add 1 Tbsp apple cider vinegar to 1 cup of whole milk, stir, let sit 5 minutes.
- Sourdough version: Omit yeast. Add 1/2 cup (115g) active starter with the wet ingredients. Rise times will be longer — watch the dough, not the clock.
- Want a heartier loaf? Substitute up to 25% hard red wheat for the hard white. You may need a small amount of extra flour — hard red absorbs a bit more liquid.
- Vital wheat gluten: If your loaves feel dense, add 1 Tbsp with the flour. Helpful in humid climates or with older wheat berries.
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