Boil the eggs in boiling water for 10 minutes until hard, rinse and peel them. Heat the fat in a saucepan. Sweat flour in it. Deglaze with stock and milk and bring to the boil while stirring. Stir in mustard and season to taste with salt and pepper and let it cool down a little. Clean and wash the broccoli and cook for about 5 minutes in boiling salted water.
Put some sauce in each of 4 small casseroles. Put eggs and broccoli into the casseroles. Spread the rest of the sauce over them. Sprinkle with Parmesan cheese and bake in the preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 10 minutes. Roast the pine nuts in a dry pan and sprinkle over the broccoli