Salsify crumpets

Name: Salsify crumpets
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Cuisine: European, British
Ingredients: 1 tbsp crème fraîche; 1 tsp Dijon mustard; 2 sticks of salsify , cut into batons, roughly 5-6cm long; ½ lemon , juiced; 1 tbsp vegetable oil; 1 tbsp butter; 4 eggs; 4 crumpets; generous pinch of grated mature cheddar; pinch of grated nutmeg; a few chopped chives , some black pepper, to serve