Drain mushrooms well. Heat 20 g butter in a pan and sauté the mushrooms. Remove from heat. Deglaze with 250 ml cold water and cream. Stir in sauce powder with a whisk. Bring to the boil while stirring. Over low heat, fold in 80 g butter in pieces until the butter has melted.
Toast the slices of bread one after the other in a toaster. Spread on a baking tray lined with baking paper. Drain the apricots well, cut in half. Spread the turkey breast on the bread slices. Add the mushroom and hollandaise sauce. Gratinate in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for about 8 minutes. Wash the chives, dab dry, cut into rings and sprinkle on top
With 10 people: