I use dressed lumber,a #3 Modified Geometry Blade, sand,oil finish such as Watco Danish clear or tung oil. I pour a small amount of oil into a Ziploc bag and dip the pieces , usually one at a time, and remove, wipe of the excess and let dry checking in 20 minutes or so and wipe any pooling especially on the edges. If I need to do a second coat it would be on the sides and probably not the edges.
occasionally I paint them with water thinned acrylic paint and only one coat on the edges then seal only the sided with oil.