I suggest you to go to the winter cycling sub-forum to get your answer for that.

As i ride pretty much between +100F and -40F i could answer tho

My answer would be to try pogies.

If you prefer gloves then adding nitrile gloves will stop you from contaminating your gloves with sweat but you will sweat a lot inside the nitrile gloves because these don't breath at all.
In fact up to 40-50 degrees nitrile gloves alone or with thin polypro gloves under will be enough.

Another solution is to wear thin goretex gloves above a thin layer of polypro gloves. Buy lots of thin polypro gloves that you switch when wet

But you must know that up to a certain point it is normal if you sweat.
Intrinsic sweat is necessary to hydrate your skin.
What you want to limit is the extrinsic sweat, the one necessary to regulate heat.
How it is done? By minimizing overheating