Salt and pepper your chuck roast.
Using tongs, sear roast on all sides of high heat, in a large skillet with olive oil.
Place pot roast in a 5 Qt or larger slow cooker or into an instant pot
Mix together all remaining ingredients and whisk together
Pour over Roast, and cook covered on low for 8-10 hours on low in a slow cooker, or for 90 minutes in an instant pot.