Onions peel, finely dice. Wash the thyme and remove the leaves. Knead minced meat, couscous, thyme, half of the diced onion and eggs. Season with salt and pepper. Cut off the lid of the pumpkins.
Hollow out the pumpkins down to the flesh. Fill in the mince. Put the lid back on. Cook in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 60-70 minutes. Meanwhile melt butter for the sauce.
Fry the remaining onion cubes in it. Add flour and curry and sauté. Add cream and stock while stirring constantly, let simmer for 2-3 minutes. Season to taste with salt and pepper. Serve filled pumpkins and sauce garnished with thyme.