A quick power off stall with plenty of rudder will usually give you the spin you want. Depending on the airplane it may be gentle or dangerous. I too learned to stall and spin, or prefferably avoid a spin, in 1'=1' scale airplanes in 1941. Spin recovery is still ailerons level, elevators neutral, power off, full rudder opposite the direction of the spin. Reason - the rudder is the control surface that doesn't go into complete stall.
Spinning model aircraft still has the same entry requirements. Full stall + rudder, however, in the case of recovery there is usually a parting of the ways. Most sport models will recover into a near vertical dive without any control input. 3D airplanes need almost the same technique as full size aircraft. Obviously the need for life depends on altitude. No one ever bumped into the sky. The first spin with a model that I tried recovering using full scale techniques cost the airplane and radio. Since that time just releasing the sticks and closing the throttle has done the trick. There is always the need to avoid hi-G pullouts. Power off, gentle back pressure on the elevator will probably bring you home.
I feel so old when I talk about full scale techniques learned so long ago. Must have been good for me because I'm still alive and I don't have to have an endorsement for taildraggers.