Fry the bacon in a pan without fat until crispy, take it out and let it drain on kitchen paper. Line two baking trays with baking paper. Preheat the oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see
manufacturer). Peel red beets (wear disposable gloves, they stain strongly!). Slice 2 smaller tubers (approx. 300 g) with a plane into fine slices. Peel, wash and slice carrots diagonally into fine slices.
Carefully mix the vegetable slices separately by variety with 2 tablespoons of oil and salt each. Distribute on the trays so that the slices do not touch each other.
Bake in a hot oven for about 10 minutes. Turn off the oven and leave the chips in the closed oven for about 10 minutes. Open the oven door a crack wide. Let the chips dry for another 10 minutes.
For the soup, peel and wash the potatoes. Dice with the rest of the beetroot. Peel and finely dice the onion. Heat 3 tablespoons of oil in a large pot. Stir-fry beetroot, potatoes and onion for about 3 minutes.
Deglaze with wine, bring to the boil. 3⁄4 Pour in l water, bring to the boil, cover and simmer for about 30 minutes, stirring occasionally. Puree with a hand blender, mixing in approx. 1⁄4 l of water to the desired consistency.
Season to taste with salt, pepper and vinegar. Arrange soup with vegetable chips and bacon.