Mainly Grains Bakers Artisanal Bakery
Oven Fresh Daily in South Portland

Mainly Grains Bakers

Premier Bakery And Cake Shop in South Portland

Bringing world-class quality and exceptional service to South Portland, ME.

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Organic Flour
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Master Bakers
Warm Sourdough Out at 7:00 AM Daily Custom Wedding & Birthday Cakes French Butter Croissants & Macarons Gluten-Free & Vegan Selections Available Warm Sourdough Out at 7:00 AM Daily Custom Wedding & Birthday Cakes
Baking Craft at Mainly Grains Bakers
Artisanal
Mastery
Pure Ingredients Stone-ground organic flours & natural starters

Baked with Passion, Honored by Tradition

At Mainly Grains Bakers, we believe great bread and pastries require time, patience, and unyielding commitment to quality.

Every single batch is crafted by hand every morning before dawn. From crisp golden croissants layered with pure French butter to long-fermentation sourdough loafs with rich, open crumbs, we bring European baking excellence right to South Portland.

  • 24-Hour Cold Fermentation Sourdoughs
  • 100% Non-GMO & Organic Local Ingredients
  • Handcrafted Specialty Espresso Bar

Bespoke Wedding & Celebration Cakes

Planning a wedding, corporate event, or milestone birthday? Our master cake sculptors craft custom multi-tiered creations tailored strictly to your vision and flavor preferences.

  • Private Flavor & Cake Tasting Consultations
  • Hand-Sculpted Sugar Flowers & Edible Gold Details
  • Delivery & Setup Service Across ME

Request Custom Cake Consultation

What Our Guests Say

"The sourdough here is absolute perfection. Soft inside with the perfect crust! We order weekly and couldn't be happier."

Claire Montgomery
Claire MontgomerySouth Portland, ME

"Mainly Grains Bakers created our 3-tier wedding cake. Not only was it breathtakingly gorgeous, but every tier tasted heavenly!"

David & Sarah Vance
David & Sarah VanceSouth Portland, ME

"Best croissants in the entire state! Pair it with their honey cortado and your morning is guaranteed to be amazing."

Marcus Miller
Marcus MillerSouth Portland, ME

Drop By Mainly Grains Bakers

We welcome you to smell the fresh sourdough and enjoy warm treats straight from our hearth.

Address: 904 Broadway, South Portland, ME 4106