First off, I'll take you through some of the processes of making the bowl. The kuksa is pretty much the same. Top tip with Kuksas, buy a long bent gouge for around £25. Its far easier than a crook knife. Pair this with a bowl adze and you'll have that cup carved out in no time and to a decent depth for a good quantity of tea, coffee, water, or tipple. Spoon/crook knives are finishing tools when it comes to bigger carved projects.
Choose your log, and split it just away from the central pith. Here Im using a froe, but two hatchets or Wooden wedges work well too
Tidy up the split surface with an axe making sure its flat, and pop it onto the Bowl Horse or other chosen method of fixing. A good method of holding like this makes a huge difference when using the tools.
Go forth with your Azde. This one is made by Hans Karlsson. It is excellent.
When the worst of the material is removed and some shape has developed to the sides, swap over to a gouge. This one is a Pfeil Long bent gouge. Wider ones with a large radius are a great way to finish after this narrower 20mm type
Thats the inside roughed out, now get cracking on the outside. Mostly done with an axe. I prefer old British Kent Pattern hatchets. Heads weighing 1 1/4lb. They cost nothing (literally sometimes) and carve beautifully once you grind and sharpen the bevel. The adze helps with the underneath of the handles.
Back onto the bowl horse, or a shave horse and continue working the outside with a draw knife.
Then finish with a straight carving knife. Frosts 106. The best there is.
Then leave the bowl to dry slowly over several days. Use bags turned inside out each day, dry wood shavings in a box, cool area outside, then warm rooms. Whatever works for you.
Then rework the whole bowl with a crook knife, gouges and straight knife till as you want it.
All finished and oiled with Flaxseed oil
Oh....and that Kuksa :)