If you're new to the game it can be really hard to build up your donut supplies if you can't buy any @sixtoes76802 :( we've all been there - I've never bought a single one and it's tough when they release lots of good items you can't buy with in game cash. Honestly though, there's no quick fix. Buy as many properties as you can so you have a steady cash flow coming in. Make sure you have 5 stars in your conformeter so you get as much as you can each time you collect. Send people on appropriate time tasks - if you sleep 8 hours send characters on 8 hour tasks.
Keep your eyes peeled on the forum for any glitches people come across that may be beneficial.
Good luck tapper B)