Every Danish morning starts with bread. Not toast, not a croissant, but a roll so dense with seeds and grain that it holds together under a thick layer of butter and a slice of aged cheese. Grovboller are the quiet foundation of the Danish day, the roll you split open while the coffee brews and the sky outside is still deciding what kind of light to give you.

The recipe asks one thing of you the night before: stir the oats and seeds into buttermilk and leave them to soak. That's it. The buttermilk softens everything overnight, and by morning the mixture has become a thick, porridge-like base that gives the rolls their texture. Heavy and moist and full of chew, nothing like the airy white rolls that fall apart when you look at them. The dark rye flour gives them their colour and their earthiness. The seeds give them their crunch. The buttermilk holds it all together.

What matters most is that you trust the dough. It will be wetter than you expect. It will stick to your hands. That's correct. A wet dough makes a moist roll, and a moist roll stays good for days. Shape them with wet hands, don't fight the stickiness, and you'll pull them from the oven with a crackled, seedy crust and a dense interior so satisfying that you'll understand why Danish families bake a batch on Sunday and eat through the week. Cooked with love, eaten with butter. That's the whole story.