How to Bake Long Johns in Your Bakery

Bake long john donuts using Suprima’s sweet dough base. Shape, fry and finish in-house for a creative twist on this trending bakery favourite.
how to bake long johns

Use Suprima’s sweet dough base to create this trending treat

Long johns are back on the radar — and they’re more versatile than ever. This elongated, yeast-raised treat is the perfect canvas for glazes, fillings, and indulgent toppings.

Best of all? You can make long johns fresh in-house using Suprima’s frozen sweet dough.

It’s the same base used for finger buns, meaning you can expand your menu with ease and bake both products from a single, high-quality dough.

Read on to discover an easy recipe for long john donuts you can make fresh in your bakery, café or food business using our sweet dough base.

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Let’s save your bakery or café time and money by using our range of convenient and versatile doughs that you bake fresh.

What are long johns?

What are long johns

Long johns are a yeast-raised, oblong fried pastry…a close cousin to the classic donut. They’re light, airy and perfect for filling with custards or creams, then finishing with a shiny glaze or rich icing. You might also hear them called ‘bar donuts’ or ‘filled fingers’ or ‘long john donuts’, depending on your location.

With their longer shape, they’re ideal for stacked dessert displays, boxed treat packs, or standout café cabinet items.

How to make long john donuts from Suprima sweet dough

Our frozen sweet bun dough makes long johns simple. It’s made from scratch, snap-frozen, and ready when you are.

Here’s how to turn our sweet dough into long johns.

Thaw

Remove dough pieces from the freezer and let them reach 10–15°C.

Shape

Roll each piece into a finger shape (you can use the finger bun method as a base). Flatten slightly to create that long, smooth top.

Proof

Let the shaped dough rise until it has doubled in size.

Fry

Carefully fry until golden brown.

Finish

Cool, then glaze, ice or fill with your choice of toppings or creams.

Your Suprima bakers will support you and your team to help you create consistent results. And if you need training or tips, we’re always happy to help.

Why long johns?

There’s a growing appetite for indulgent, Instagrammable baked goods — and long johns tick every box:

  • Great for topping with bright glazes, ganache or sprinkles
  • Easy to fill with custards, jam, or cream
  • Larger size means more room for creativity and higher margins
  • A fun way to stand out from typical donut ranges

Customers love them for their size, softness and generous fillings. Bakers love them for how easily they sell.

Why use Suprima’s dough for long johns?

frozen donut dough Suprima Bakeries

Instead of sourcing ingredients and developing your own recipe, Suprima gives you a ready-to-use sweet dough that saves time, labour and cost. All the hard work is done – you simply thaw, shape, proof, fry and finish.

Using our sweet bun dough for long johns means:

Long john flavour ideas

The fun of long johns is how versatile they are. Some customer favourites include:
  • Chocolate iced with custard filling
  • Raspberry jam filled with a dusting of sugar
  • Lemon cream with white chocolate drizzle
  • Caramel glaze with crushed nuts
  • Cookies and cream topping with chocolate ganache
  • Limited-edition seasonal glazes (Christmas, Easter, Valentine’s Day)
Need inspiration? Our team can help with flavour suggestions, finishing techniques and display ideas.

A Versatile Solution

sweet dough base

The dough you use to make long johns is the same high-quality base we use for finger buns and sweet buns. That means less prep, less complexity, and more ways to grow your range from one simple, versatile product.

Make a Trade Enquiry

Let’s save your bakery or food business time and money by using our range of convenient and versatile doughs that you bake fresh. Contact the team at Suprima Bakeries today.

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