Remove the kitchen cabinet doors from the hinges with a screwdriver. Most hinges use Phillips-head screwdrivers, although some require a flat-blade screwdriver instead.
Paint oil-based primer onto the front surface of the cabinet and the cabinet doors, using a paintbrush. Allow this coat to dry overnight.
Dry-brush the second color of oil-based primer over the first. Dry-brushing involves dipping the brush in primer, then wiping it off before using it on the wood. The result is a streaked effect created by the brush bristles. Let the second coat dry overnight.
Sand areas of the cabinet surface lightly with sandpaper to pull out the first color and expose some of the wood.
Draw light pencil marks along the surface to simulate cracks. You can erase them if they are too dark.
Dry-brush stain around the corners and edges of cabinet doors to increase the appearance of aging. Keep a soft cloth nearby to dab away extra stain.
Flip the bristles of a dry brush coated with stain to splatter the wood. This creates the effect of distressed, aged wood.