Preparation Stir fennel seeds in small dry skillet over medium heat until very fragrant and slightly darker in color, about 3 minutes. Add coarse salt; stir to blend. Remove from heat; cool. Transfer fennel seed mixture to spice mill; grind until fennel seeds are just coarsely chopped (do not grind to powder). DO AHEAD: Can be made 2 days ahead. Store airtight at room temperature. Arrange fennel slices and turnip wedges on platter; garnish with fennel fronds. Serve vegetables with fennel salt.
Preparation Stir fennel seeds in small dry skillet over medium heat until very fragrant and slightly darker in color, about 3 minutes. Add coarse salt; stir to blend. Remove from heat; cool. Transfer fennel seed mixture to spice mill; grind until fennel seeds are just coarsely chopped (do not grind to powder). DO AHEAD: Can be made 2 days ahead. Store airtight at room temperature. Arrange fennel slices and turnip wedges on platter; garnish with fennel fronds. Serve vegetables with fennel salt.