Preheat the oven to 400F.
Remove the ends from the beets and peel off the skins. Cut the beets into ½” cubes and place them on a baking sheet.
Drizzle with 1 tablespoon olive oil and season with salt and pepper (to taste).
Roast the beets for 30-55 minutes, or until they are fork tender. Then, remove the beets from the oven and allow them to cool to room temperature.
To make the hummus, add the tahini to the bowl of a food processor. With the food processor on low speed, slowly drizzle in the cold water. Process for 10-15 seconds until the tahini is smooth.
Add the roasted and cooled beets, along with the garbanzo beans, garlic, thyme, and lemon juice.
Process on low speed until the beans and beets are broken up into small pieces. With the food processor still on low speed, slowly drizzle in the remaining ? cup olive oil. Season with salt and pepper to taste.
Once all of the olive oil has been added, turn the food processor to high speed and process until the hummus is your desired consistency. I like a really smooth hummus so I process mine for about 45 seconds.
Serve the hummus with pita chips or vegetables and enjoy.
Store any leftovers in an airtight container in the fridge for up to five days.