Bola de Berlim Portuguese Filled Donuts Recipe (Baked, High-Protein Version)

Bola de Berlim Portuguese Filled Donuts, baked and high in protein, is the kind of recipe that earns a permanent spot in your rotation once you try it. The original bola de berlim is a beloved Portuguese beach snack, a yeasted dough ball split open and filled with a thick egg custard cream, sold from carts along the Algarve coast. This version keeps the soul of that tradition intact while doing something the street version never does: it delivers 9 grams of protein per donut and uses a Greek yogurt filling instead of a custard loaded with egg yolks and sugar. The dough is baked in the oven rather than submerged in hot oil, which cuts the fat content significantly without sacrificing the soft, pillowy interior that makes this treat so satisfying. For anyone who has tried to enjoy classic filled donuts without the post-sugar crash, this recipe offers a genuinely worthwhile alternative. The lemon zest lifts the whole thing in a way that feels authentic to Portuguese baking, not like a compromise.

The ingredient list here is doing real work on the nutritional side. White spelt flour forms the base of the dough and contributes a mild nuttiness along with more fibre and minerals than standard plain flour, including manganese and magnesium. Oat flour is blended in to increase the fibre content further, hitting 3 grams per donut, and it gives the crumb a slightly tender, moist quality that spelt alone would not achieve. Fast-action dried yeast is the leavening agent that creates that classic domed shape and chewy texture. Raw honey provides the gentle sweetness in both the dough and the filling, and unlike refined white sugar it brings trace enzymes and antioxidants. Whole milk adds fat-soluble vitamins and helps activate the yeast properly. The two free-range eggs contribute to the structure and add protein, as does the star of the filling: 400 grams of full-fat plain Greek yogurt, which provides casein protein and live cultures beneficial for gut health. Extra virgin olive oil replaces butter in the dough and brings heart-healthy monounsaturated fats.

When these donuts come out of the oven they are a deep golden colour on top with a soft, barely set crust that gives slightly under your thumb. The smell as they bake is warm and yeasty with a background note of lemon, which intensifies as the vanilla in both the dough and filling starts to come through. The dough itself is soft and pulls apart in layers when you split each ball open for filling. The Greek yogurt cream, mixed with raw honey and vanilla extract, is thick and cool against the warm baked dough, and that contrast is part of what makes this so satisfying to eat. The flavour is clean and lightly sweet with the tang of yogurt sitting underneath the honey. There is nothing heavy about it. The baking process, done at a high temperature for a short time after a single prove, helps the dough stay tender inside without forming a hard crust. Rolling the finished donuts in a fine dusting of caster sugar just before serving gives them that recognisable sparkle from the original.

This recipe supports a high-protein dietary approach, making it genuinely useful for people who train in the morning and want a post-workout breakfast that still feels like a treat. Each donut sits at 210 calories with a macro split that leans into protein and moderate carbohydrate, which supports muscle recovery without spiking blood sugar sharply. The combination of oat flour fibre and protein from eggs and Greek yogurt slows digestion and extends satiety compared to a traditional fried donut made with refined flour. This recipe fits naturally into a Mediterranean-style eating pattern given the olive oil, spelt flour and honey. It is suitable for lacto-vegetarians and for those following high-protein or balanced macro diets. People managing their weight who still want baked goods in their week will find the halved sugar content and protein-forward filling much easier to fit into their daily targets. It is also a strong option for families with children who need more protein at breakfast without noticing the difference from a flavour perspective.

For meal prep, the dough can be made the evening before, shaped into balls, placed on a lined tray, covered with cling film, and left in the fridge overnight for a slow cold prove. The next morning you bring them to room temperature for 20 minutes before baking. Baked unfilled donuts keep well in an airtight container at room temperature for up to two days, and they reheat beautifully in a low oven at 150 degrees Celsius for five minutes before splitting and filling. The Greek yogurt cream should always be stored separately in the fridge, where it keeps for up to three days. For variations, you can swap the honey in the filling for a ripe mashed banana to add natural sweetness and potassium. A second option is to fold a teaspoon of cinnamon into the yogurt cream for a warmer spiced note. A third variation uses orange zest in place of lemon zest in the dough, which gives a rounder, slightly sweeter fragrance that works especially well in winter. Head to the recipe card below for the full method and exact timings.