To prepare a sweet pea soup with lemon pepper cream soups recipe, you'll need: Sweet Peas: Peel and cut the sweet, seedy, and starchy greens. Cut the white part of the lemon in half. Peel the yellow part, then cut it into 1/4-inch slices. Add the sugar, lemon juice, salt and pepper to taste. Cook the mixture over medium-low heat, stirring occasionally, until it begins to thicken. Remove the saucepan from the heat and stir in the cream. Pour the soup into serving bowls and garnish with sprigs of thyme, if desired.