Authentic Cemita Buns: Mexican Sesame Sandwich Rolls

A Note from Isabel

I didn’t grow up eating cemita bread — I discovered it as an adult. Because I already love baking Mexican breads like bolillos and teleras, learning to make cemitas at home felt like a natural next step.

Cemitas are large, round buns with a twisted top, a golden crust, and a generous coating of sesame seeds. In Puebla they’re the signature bread for cemitas poblanas, sandwiches piled with milanesa, avocado, chipotles, quesillo, and pápalo. My version uses butter and egg for a slightly richer, softer crumb while still holding up to a hearty sandwich.

You rarely find high-quality cemitas in stores or many bakeries, so homemade is often the best option. Once you have a batch, they’re great not only for cemitas but for tortas or even burgers. Your kitchen will smell like a panadería — and that’s part of the joy.

What Are Cemita Buns?

Cemita rolls are large sesame seed buns from Puebla, Mexico. The name derives from an old Spanish word for bran. They’re easy to recognize by their distinctive top: a small section of dough is twisted and folded over the larger portion before baking, creating a subtle swirl or ridge across the top.

Traditional Puebla cemitas are often made with a lean dough of flour, water, yeast, and salt, and sometimes brushed with a sweet cornstarch glaze. This recipe uses a richer dough with butter and egg, giving a tender crumb similar to a hamburger bun or soft brioche, while still being robust enough for a loaded sandwich. Don’t confuse cemitas with semitas, which are a different, sweeter bread from northern Mexico and Texas.

Ingredients You’ll Need

A handful of pantry basics are all you need. Quantities are listed in the recipe card below.

• Bread flour — higher protein helps the rolls stay soft but sturdy. All-purpose flour can be used if needed, but the rolls will be a touch more tender and less robust.
• Instant yeast — speeds up rising; active dry yeast can substitute with longer rise times.
• Warm water — around 110–115°F to activate yeast. Warm milk can be used for a richer dough.
• Butter — adds richness and a softer crumb. Softened lard or neutral oil can be substituted.
• Egg — one whole egg in the dough for moisture; an extra yolk mixed with water makes the egg wash for a deep golden top.
• Sesame seeds — be generous; they’re the visual signature of cemitas. Toasted or untoasted both work.

How To Make Cemita Buns

Most of the process is hands-off while the dough rises. Shaping has a simple “snowman” technique that creates the characteristic twisted top.

After the first rise, divide the dough into six equal balls. To shape, rest the pinky-side of your hand about one-third of the way across a dough ball and roll back and forth until a smaller top ball forms attached to a larger bottom ball — like a snowman.

Flatten the shaped piece gently with your palm so the bottom measures roughly 5 inches across. Pick up the small end, twist it a half turn, and lay it over the larger end. Press and pinch the edges to seal, creating a curved ridge across the top.

Place the shaped buns on a parchment-lined baking sheet, cover, and allow them to rise until nearly doubled, about 1 to 1½ hours.

Brush with an egg wash (egg yolk + a little water) and sprinkle generously with sesame seeds. Bake at 350°F for 25–30 minutes until deep golden brown. Cool completely before slicing.

Recipe Tips

• Go for tacky, not sticky. The dough should be slightly tacky after kneading but not stick to your fingers. Add flour 1 tablespoon at a time if needed.
• Seal seams well. Press seams firmly when you fold the small piece over; loose seams can pull apart in the oven and produce uneven tops.
• Apply sesame seeds to wet wash. The egg wash holds the seeds—don’t let it dry before sprinkling.
• Wait to slice. Let buns cool completely before slicing to avoid a dense, gummy crumb.

Cemita Buns FAQs

Cemita Buns (Mexican Sesame Bread)

Ingredients

• 1 cup warm water (110–115°F)
• 2 ¼ teaspoons instant yeast (1 packet)
• 3 tablespoons granulated sugar, divided
• 3 ½ cups (480 g) bread flour, spooned and leveled
• 1 teaspoon fine salt
• ⅓ cup unsalted butter, melted and cooled slightly
• 1 large egg
• 1 large egg yolk (for egg wash)
• 3–4 tablespoons sesame seeds, for topping

Instructions

1. Make the dough. Warm the water to 110–115°F. Stir in the yeast and 1 tablespoon sugar, cover, and let bloom until foamy, about 10 minutes.
2. Whisk together the flour, remaining 2 tablespoons sugar, and salt. Add the yeast mixture, melted butter, and the whole egg. Knead with a dough hook or by hand for 8–10 minutes until smooth and slightly tacky. Add flour 1 tablespoon at a time if the dough is sticky.
3. First rise. Place dough in a greased bowl, cover, and let rise in a warm place until doubled, about 1½–2 hours.
4. Shape the buns. Punch down the dough and divide into six equal pieces. Roll each into a ball, then shape into a “snowman” with a small top ball attached to a larger bottom ball. Flatten slightly, twist the small end a half turn and fold it over the large end, pinching seams to seal. The bottom should be roughly 5–6 inches across.
5. Second rise. Place shaped buns on a parchment-lined sheet, cover, and let rise until nearly doubled, about 1–1½ hours. Preheat oven to 350°F during the last 20 minutes.
6. Bake. Whisk the egg yolk with 2 teaspoons water and brush over the buns. Sprinkle generously with sesame seeds. Bake 25–30 minutes until deep golden. Cool completely on a wire rack before slicing.

Notes

• Storing and freezing: Store cooled buns in an airtight container at room temperature up to 4 days. Freeze individually wrapped for up to 3 months; thaw at room temperature.
• Yeast: Active dry yeast can replace instant, but allow extra time for rises.
• Flour: All-purpose works if needed, but bread flour gives a sturdier roll for big sandwiches.
• Seams: If seams aren’t sealed fully, tops may pull apart in the oven.
• Slicing: Wait until buns are completely cool; slicing warm bread compresses the crumb.

More Recipes To Try

• Pambazos
• Torta de Jamón
• Pollo en Crema de Chipotle

Photography by Ashley McLaughlin.