Peel and finely dice shallots and garlic clove. Remove the celery skin and chop a little.
Heat 1.5 tbsp. vegetable oil in a saucepan. Sauté shallot and garlic cubes briefly. Add celery pieces, fry briefly and deglaze with a dash of white wine. Let white wine reduce for 2-3 minutes. Then add frozen peas, 200 ml water and coconut milk.
Bring ingredients to a boil once briefly, reduce heat and simmer soup gently for about 10-15 minutes until celery pieces are soft. If desired, you can stir in 1-2 tsp vegetable broth powder to intensify the taste.
Add tahini, a handful of mint leaves, 1-2 tsp grated horseradish, salt and pepper to the soup and puree it.
Season the soup with 1-2 tsp. of lemon juice, salt to taste and add water to adjust the consistency (I added another 100 ml (0.4 cup) of water).
Divide soup among bowls, stir in 1 tbsp. soy yogurt into each soup serving, garnish with peas, cress, and freshly grated horseradish to taste. Enjoy your meal!