Add water, grated beet, dried rosemary, dried garlic and sea salt to a medium-sized pot. Bring to a boil.
Lower the heat and slowly whisk in the polenta. Keep stirring and continue cooking for about 2 -3 minutes, until it thickens.
Pour the polenta onto a parchment-lined baking sheet and use a spatula to spread it evenly.
Place in the fridge to set for at least 1 hour.
Preheat the oven to 425 F / 215 C.
Cut the polenta into fries and place them on a greased baking sheet. Brush each polenta fry with a little more olive oil.
Bake for 25 – 30 minutes, flipping them halfway through, until the fries are golden on the outside and tender on the inside.
Serve immediately with my aquafaba garlic mayo or your favorite dipping sauce and enjoy!