1995 Chevy S-10 1995 Chevy S-10 - engine shutoff sporadicall

My 1995 Chevy S10 is acting as though I turned off the ignition key while I'm driving. It is only doing it when it is cold outside and the truck has not fully warmed up. While I am driving, the engine shuts off, all dashboard lights come, the doors unlock, and interior light comes on, just like what happens when I do turn off the engine. But while I'm driving, the engine immediately "restarts" so it is like a buck or a miss, and I just keep going. It does it normally two times within about 5 minutes, so I'm wondering if there is a relay switch or sensor that might be exposed or have some moisture getting to it until the truck warms up.