Rinse the venison steaks under cold water, and pat them dry.
Trim off any excess fat from the steaks with a knife.
Fill an airtight container with buttermilk and place the steaks in it.
Cover and transfer to your fridge. Marinate overnight.
Combine the salt, pepper, paprika, and flour in a mixing bowl. Whisk well.
Pour a tablespoon of buttermilk into the mix.
Take the venison steaks from the container, drip off the excess buttermilk, and coat them in the seasoning mixture, one at a time.
Place each cube on a baking sheet, and let it sit for 15 minutes.
Heat the stove to medium heat.
Heat some vegetable oil in a large skillet.
Then add the olive oil and butter.
Once the butter has melted, add the steaks. Fry each piece for two minutes per side.