Purchasing Beets: Always purchase beets with the tops on them. Fresh tops mean fresh beets.
Preheat oven to 350 degrees F. Place rack in middle of oven.
Wash and scrub the whole beets to clean off any dirt. Leave the beet whole unless you have some extra large ones (if extra large, cut in half). Trim off the stems (leafy tops) and ends of the beets.
Reserve the beet leaves for a recipe using them. Beet Greens - How To Cook Fresh Beet Greens.
On a large baking sheet, cover with aluminum foil. Place prepared beets, in a single layer, on top. Toss lightly with some olive oil to coat the beets. Place another large sheet of aluminum foil on top of the beets and crunch up the sides of the aluminum foil together to seal.
Place in oven and roast approximately 1 to 2 hours (depending on the size of your beets) or until tender and easily pierced with the tip of a paring knife. Remove from oven and take off the top foil. Set aside to cool enough to handle.
When cool enough to handle, peel the skin off. They should peel easily by hand, but you can use a paring knife if you want.
Either store in the refrigerator whole or cut each beet into slices (as thick or thin as you prefer).
Beets are delicious on their own sprinkled with a little salt or as an accompaniment to your dinner. Some people like to serve them as an appetizer with a good goat cheese. Be creative and enjoy!
Oven Roasted Beets Recipe: https://whatscookingamerica.net/Vegetables/OvenRoastedBeets.htm