Roast Beef and Redcurrant Gravy

Once the potatoes are ready, drain in a colander, pop back into the pan then sprinkle on the rosemary and half the flour. Give your pan a shake to fluff up the potato. Take your hot baking tray out of your oven, carefully transfer your potatoes onto it in a single layer, turning in the oil. Season with of salt. Roast the potatoes on the top shelf of your oven until golden, 45-50 mins, turn halfway through. TIP: If the potatoes are cooked before everything else is ready, turn your oven off and leave the potatoes on the bottom shelf to keep warm.

Meanwhile, season the beef with salt and pepper and transfer to a roasting tray. Roast the beef on the middle shelf of your oven for 35/45/55 mins (depending on size) for medium rare. Add an extra 5 mins if you like your beef more cooked. IMPORTANT: Wash your hands after handling raw meat. Once cooked, rest the beef wrapped loosely in foil for at least 10 mins before slicing.

Peel the celeriac and chop into 2cm chunks. Add the celeriac to the other pan of boiling water and simmer until tender, 12-15 mins. TIP: The celeriac is cooked when you can easily slip a knife through. Mix the breadcrumbs with a drizzle of oil and season with salt and pepper. Once cooked, drain in a colander, return to the pan and add the creme fraiche, blue cheese. Pop onto medium heat, stir and cook until the creme fraiche has come to the boil, then remove from the heat. Season to taste. Pour into a small oven dish, sprinkle over the breadcrumbs and bake in your oven until bubbling and slightly golden on top, 20 mins.

Meanwhile, put a medium sized saucepan on medium high heat and add half the butter. Allow the butter to melt, then stir in the remaining flour to create a smooth paste. You've made a roux! Cook, stirring until the roux is a medium brown colour and gradually stir in the water (see ingredients for amount), red wine stock pot and redcurrant jelly. Bring to the boil, carefully stirring out any lumps that form. Lower the heat and simmer until the gravy has thickened to your liking, 15-20 mins. Add a splash of water if necessary.