Not bad, though I think I should have chopped the parsley more finely… Recipe from my CSA mailout; soy milk and creamer equivalents used (as well as margarine in place of butter):
4 kohlrabi bulbs, peeled and cubed
1/2 teaspoon salt
2 tablespoons butter
2 tablespoons all-purpose flour
1 cup milk
3 tablespoons cream
1 teaspoon salt
1 teaspoon ground nutmeg
2 teaspoons white pepper
1/2 bunch fresh parsley, chopped
1. Place the kohlrabi and 1/2 teaspoon salt in a saucepan. Cover with water, and bring to a boil over medium-high heat. Cook until kohlrabi can be pierced with a fork, but remains firm, about 5 minutes. Drain, reserving 1 cup of cooking water. Place kohlrabi in a bowl, and cover.
2. Place the butter into the same saucepan, and melt over medium heat. Whisk in the flour, and stir until the mixture becomes paste-like and golden brown. Gradually whisk the milk and reserved cooking water from the kohlrabi into the flour mixture, stirring until thick and smooth. Stir in the cream, 1 teaspoon salt, nutmeg, white pepper, and parsley until well blended. Continue whisking until sauce thickens, then cook 10 minutes more. Stir in the kohlrabi, tossing to coat evenly with sauce.