To prepare a split pea soupbrown soups recipe, you'll need: Split Peas (Oregano, Salt, Pepper, Onion, Celery, Garlic) 1 1/2 cups water 1 tablespoon kosher salt 2 tablespoons olive oil 1 teaspoon thyme 2 tbsp. paprika 2 teaspoons ground black pepper Instructions Preheat the oven to 425 degrees F. Peel and slice the onion. Cut the celery into 1/4-inch-thick slices. Add the onions to the pot and cook over medium-high heat, stirring occasionally, until the vegetables are tender, about 5 minutes. Stir in the garlic. Bring the mixture to boil, then reduce the heat to medium. Simmer, covered, for 5 to 10 minutes, or until tender. Remove the pan from heat and add the chopped parsley. Season to taste with salt and pepper. Serve warm or at room temperature.