The Great Finnish Bake-Off would call them "slightly raw in the middle"). I was planning on taking photos of the baking steps but the dough was too wet and sticking to the table, so I didn't bother washing my hands all the time for the sake of photos. Instead, I've drawn instructions on how to roll the buns.
Oh, and please don't premix the filling but spread the butter first and then sprinkle the dry ingredients on top of the butter layer. It really impacts the taste and texture whether making a paste or spreading butter and dry ingredients separately, although one would maybe expect otherwise.
Finnish Cinnamon Buns (makes 10-15)
see recipe for Shrove Buns
(this time I used oatmilk instead of regular milk and didn't use egg at all)
Filling (I don't have any specific amounts)
butter (soft, at room-temperature)
Egg (beaten) or milk for "eggwash"
Make the dough according to Shrove Buns' instructions. After you've let it rise once, knead the air out of it on a floured surface. Roll appr. 30x40 cm rectangle (the long edge facing you). The thickness should be around 3-4 mm: enough to roll it easily but not too thick as to make the buns too big (they would bake into odd shapes in that case.) Spread the softened butter so that it covers the whole rectangle (the amount of butter is up to you. I think I used appr. 3 Tbsp for a dough of this size). Like you would butter a toast :D Sprinkle on the sugar and cinnamon, generously (maybe 3 Tbsp sugar, 1 Tbsp cinnamon. Sorry, I never measure them...).
Then, starting from the long side facing you, roll the dough up into a tight cylinder. Place the cylinder so that the open seam of the long edge is under the cylinder, facing the surface. Cut into individual buns in diagonal cuts, alternating the direction (see picture on the left). If the cut is too perpendicular, the
Place buns on baking tray, the broad edge (labeled "bottom" in the picture) facing the tray, the short one (labeled "top") upwards. Press down on the short edge to mold them into "ear lobes" (the blue bun on the picture).
Cover the buns loosely with kitchen cloth. Set aside in a warm place to rise until rolls double in size, about 30 minutes. Preheat the oven to 225 C. Once risen, brush the buns with eggwash or milk and sprinkle pearl sugar on top. Bake until golden brown (appr. 7-13 min, maybe closer to 15 min if you opted for big ones).
P.S. Will you be spending your Saturday baking and/or eating cinnamon buns?